400031102 has 16 divisors (see below), whose sum is σ = 604454400. Its totient is φ = 198551640.

The previous prime is 400031083. The next prime is 400031119. The reversal of 400031102 is 201130004.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201149 + ... + 203127.

It is an arithmetic number, because the mean of its divisors is an integer number (37778400).

Almost surely, 2^400031102 is an apocalyptic number.

400031102 is a deficient number, since it is larger than the sum of its proper divisors (204423298).

400031102 is a wasteful number, since it uses less digits than its factorization.

400031102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2671.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 400031102 is about 20000.7775348860. Note that the first 3 decimals coincide. The cubic root of 400031102 is about 736.8253960244.

Adding to 400031102 its reverse (201130004), we get a palindrome (601161106).

The spelling of 400031102 in words is "four hundred million, thirty-one thousand, one hundred two".