1456380 has 120 divisors (see below), whose sum is σ = 4878720. Its totient is φ = 362880.

The previous prime is 1456333. The next prime is 1456381. The reversal of 1456380 is 836541.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1456381) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 46965 + ... + 46995.

It is an arithmetic number, because the mean of its divisors is an integer number (40656).

2^1456380 is an apocalyptic number.

1456380 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 1456380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2439360).

1456380 is an abundant number, since it is smaller than the sum of its proper divisors (3422340).

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

1456380 is a wasteful number, since it uses less digits than its factorization.

1456380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1456380 is about 1206.8057010140. The cubic root of 1456380 is about 113.3508815580.

The spelling of 1456380 in words is "one million, four hundred fifty-six thousand, three hundred eighty".