39900735 has 32 divisors (see below), whose sum is σ = 81070080. Its totient is φ = 18239904.

The previous prime is 39900719. The next prime is 39900739. The reversal of 39900735 is 53700993.

It is not a de Polignac number, because 39900735 - 2⁴ = 39900719 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39900735.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39900739) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20167 + ... + 22056.

It is an arithmetic number, because the mean of its divisors is an integer number (2533440).

Almost surely, 2^39900735 is an apocalyptic number.

39900735 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

39900735 is an abundant number, since it is smaller than the sum of its proper divisors (41169345).

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

39900735 is a wasteful number, since it uses less digits than its factorization.

39900735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42244 (or 42238 counting only the distinct ones).

The product of its (nonzero) digits is 25515, while the sum is 36.

The square root of 39900735 is about 6316.7028582956. The cubic root of 39900735 is about 341.7120537233.

The spelling of 39900735 in words is "thirty-nine million, nine hundred thousand, seven hundred thirty-five".