39900955 has 16 divisors (see below), whose sum is σ = 52449120. Its totient is φ = 29005312.

The previous prime is 39900943. The next prime is 39900967. The reversal of 39900955 is 55900993.

It is a happy number.

39900955 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (39900943) and next prime (39900967).

It is a cyclic number.

It is not a de Polignac number, because 39900955 - 2¹¹ = 39898907 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5629 + ... + 10558.

It is an arithmetic number, because the mean of its divisors is an integer number (3278070).

Almost surely, 2^39900955 is an apocalyptic number.

39900955 is a deficient number, since it is larger than the sum of its proper divisors (12548165).

39900955 is a wasteful number, since it uses less digits than its factorization.

39900955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16238.

The product of its (nonzero) digits is 54675, while the sum is 40.

The square root of 39900955 is about 6316.7202724199. The cubic root of 39900955 is about 341.7126817528.

The spelling of 39900955 in words is "thirty-nine million, nine hundred thousand, nine hundred fifty-five".