39903696 has 120 divisors (see below), whose sum is σ = 131848704. Its totient is φ = 11024640.

The previous prime is 39903691. The next prime is 39903697. The reversal of 39903696 is 69630993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39903691) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30610 + ... + 31886.

Almost surely, 2^39903696 is an apocalyptic number.

39903696 is a gapful number since it is divisible by the number (36) 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 39903696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65924352).

39903696 is an abundant number, since it is smaller than the sum of its proper divisors (91945008).

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

39903696 is a wasteful number, since it uses less digits than its factorization.

39903696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329 (or 1320 counting only the distinct ones).

The product of its (nonzero) digits is 236196, while the sum is 45.

The square root of 39903696 is about 6316.9372325519. The cubic root of 39903696 is about 341.7205062356.

The spelling of 39903696 in words is "thirty-nine million, nine hundred three thousand, six hundred ninety-six".