39875040 has 72 divisors (see below), whose sum is σ = 136078488. Its totient is φ = 10632960.

The previous prime is 39874997. The next prime is 39875041. The reversal of 39875040 is 4057893.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 39874986 and 39875004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39875041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12406 + ... + 15285.

It is an arithmetic number, because the mean of its divisors is an integer number (1889979).

Almost surely, 2^39875040 is an apocalyptic number.

39875040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

39875040 is an abundant number, since it is smaller than the sum of its proper divisors (96203448).

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

39875040 is a wasteful number, since it uses less digits than its factorization.

39875040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27712 (or 27701 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 39875040 is about 6314.6686373871. The cubic root of 39875040 is about 341.6386868488.

The spelling of 39875040 in words is "thirty-nine million, eight hundred seventy-five thousand, forty".