39896420 has 24 divisors (see below), whose sum is σ = 85567104. Its totient is φ = 15618656.

The previous prime is 39896401. The next prime is 39896429. The reversal of 39896420 is 2469893.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (39896429) 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, 20282 + ... + 22161.

It is an arithmetic number, because the mean of its divisors is an integer number (3565296).

Almost surely, 2^39896420 is an apocalyptic number.

It is an amenable number.

39896420 is an abundant number, since it is smaller than the sum of its proper divisors (45670684).

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

39896420 is a wasteful number, since it uses less digits than its factorization.

39896420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42499 (or 42497 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 39896420 is about 6316.3612942896. The cubic root of 39896420 is about 341.6997353147.

The spelling of 39896420 in words is "thirty-nine million, eight hundred ninety-six thousand, four hundred twenty".