1438652300 has 72 divisors (see below), whose sum is σ = 3370096800. Its totient is φ = 531435520.

The previous prime is 1438652297. The next prime is 1438652351. The reversal of 1438652300 is 32568341.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55916 + ... + 77484.

It is an arithmetic number, because the mean of its divisors is an integer number (46806900).

Almost surely, 2^1438652300 is an apocalyptic number.

1438652300 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 1438652300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1685048400).

1438652300 is an abundant number, since it is smaller than the sum of its proper divisors (1931444500).

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

1438652300 is a wasteful number, since it uses less digits than its factorization.

1438652300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21635 (or 21628 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 1438652300 is about 37929.5702585727. The cubic root of 1438652300 is about 1128.8908374045.

The spelling of 1438652300 in words is "one billion, four hundred thirty-eight million, six hundred fifty-two thousand, three hundred".