39950890 has 32 divisors (see below), whose sum is σ = 82684800. Its totient is φ = 13614144.

The previous prime is 39950887. The next prime is 39950891. The reversal of 39950890 is 9805993.

It is a super-2 number, since 2×39950890² = 3192147223584200, which contains 22 as substring.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (39950891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10461 + ... + 13759.

It is an arithmetic number, because the mean of its divisors is an integer number (2583900).

Almost surely, 2^39950890 is an apocalyptic number.

39950890 is an abundant number, since it is smaller than the sum of its proper divisors (42733910).

39950890 is a wasteful number, since it uses less digits than its factorization.

39950890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3486.

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 39950890 is about 6320.6716415267. The cubic root of 39950890 is about 341.8551704857.

The spelling of 39950890 in words is "thirty-nine million, nine hundred fifty thousand, eight hundred ninety".