39901000 has 32 divisors (see below), whose sum is σ = 93370680. Its totient is φ = 15960000.

The previous prime is 39900967. The next prime is 39901003. The reversal of 39901000 is 10993.

It can be written as a sum of positive squares in 4 ways, for example, as 3104644 + 36796356 = 1762^2 + 6066^2 .

It is not an unprimeable number, because it can be changed into a prime (39901003) 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 7 ways as a sum of consecutive naturals, for example, 18951 + ... + 20950.

Almost surely, 2^39901000 is an apocalyptic number.

It is an amenable number.

39901000 is an abundant number, since it is smaller than the sum of its proper divisors (53469680).

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

39901000 is a wasteful number, since it uses less digits than its factorization.

39901000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39922 (or 39908 counting only the distinct ones).

The product of its (nonzero) digits is 243, while the sum is 22.

The square root of 39901000 is about 6316.7238343939. The cubic root of 39901000 is about 341.7128102131.

Adding to 39901000 its reverse (10993), we get a palindrome (39911993).

The spelling of 39901000 in words is "thirty-nine million, nine hundred one thousand".