1451245040 has 80 divisors (see below), whose sum is σ = 3902750208. Its totient is φ = 491559168.

The previous prime is 1451245027. The next prime is 1451245049. The reversal of 1451245040 is 405421541.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1451245040² = 4212224332249203200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1451245049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30869 + ... + 62091.

Almost surely, 2^1451245040 is an apocalyptic number.

1451245040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1451245040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1951375104).

1451245040 is an abundant number, since it is smaller than the sum of its proper divisors (2451505168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1451245040 is a wasteful number, since it uses less digits than its factorization.

1451245040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31326 (or 31320 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1451245040 is about 38095.2101976088. The cubic root of 1451245040 is about 1132.1750573123.

Adding to 1451245040 its reverse (405421541), we get a palindrome (1856666581).

The spelling of 1451245040 in words is "one billion, four hundred fifty-one million, two hundred forty-five thousand, forty".