39400704 has 162 divisors, whose sum is σ = 132527850. Its totient is φ = 11225088.

The previous prime is 39400703. The next prime is 39400733. The reversal of 39400704 is 40700493.

It can be written as a sum of positive squares in only one way, i.e., 36578304 + 2822400 = 6048^2 + 1680^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39400703) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 112722 + ... + 113070.

Almost surely, 2^39400704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39400704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66263925).

39400704 is an abundant number, since it is smaller than the sum of its proper divisors (93127146).

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

39400704 is a wasteful number, since it uses less digits than its factorization.

39400704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385 (or 361 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 39400704 is about 6276.9980086025. The cubic root of 39400704 is about 340.2786182171.

It can be divided in two parts, 39400 and 704, that added together give a palindrome (40104).

The spelling of 39400704 in words is "thirty-nine million, four hundred thousand, seven hundred four".