39896556 has 24 divisors (see below), whose sum is σ = 106391040. Its totient is φ = 11398992.

The previous prime is 39896551. The next prime is 39896579. The reversal of 39896556 is 65569893.

It is a super-2 number, since 2×39896556² = 3183470361322272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 39896499 and 39896508.

It is not an unprimeable number, because it can be changed into a prime (39896551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237396 + ... + 237563.

It is an arithmetic number, because the mean of its divisors is an integer number (4432960).

Almost surely, 2^39896556 is an apocalyptic number.

It is an amenable number.

39896556 is an abundant number, since it is smaller than the sum of its proper divisors (66494484).

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

39896556 is a wasteful number, since it uses less digits than its factorization.

39896556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474973 (or 474971 counting only the distinct ones).

The product of its digits is 1749600, while the sum is 51.

The square root of 39896556 is about 6316.3720599724. The cubic root of 39896556 is about 341.7001235794.

The spelling of 39896556 in words is "thirty-nine million, eight hundred ninety-six thousand, five hundred fifty-six".