39459970432 has 64 divisors (see below), whose sum is σ = 82679045760. Its totient is φ = 18733178880.

The previous prime is 39459970411. The next prime is 39459970441. The reversal of 39459970432 is 23407995493.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116488 + ... + 304120.

It is an arithmetic number, because the mean of its divisors is an integer number (1291860090).

Almost surely, 2^39459970432 is an apocalyptic number.

39459970432 is a gapful number since it is divisible by the number (32) 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 39459970432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41339522880).

39459970432 is an abundant number, since it is smaller than the sum of its proper divisors (43219075328).

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

39459970432 is a wasteful number, since it uses less digits than its factorization.

39459970432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187731 (or 187719 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 55.

The spelling of 39459970432 in words is "thirty-nine billion, four hundred fifty-nine million, nine hundred seventy thousand, four hundred thirty-two".