400511034 has 64 divisors (see below), whose sum is σ = 1109652480. Its totient is φ = 104027760.

The previous prime is 400511011. The next prime is 400511063. The reversal of 400511034 is 430115004.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 400510998 and 400511016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44004 + ... + 52319.

It is an arithmetic number, because the mean of its divisors is an integer number (17338320).

Almost surely, 2^400511034 is an apocalyptic number.

400511034 is an abundant number, since it is smaller than the sum of its proper divisors (709141446).

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

400511034 is a wasteful number, since it uses less digits than its factorization.

400511034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96352 (or 96346 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 400511034 is about 20012.7717720460. The cubic root of 400511034 is about 737.1199437558.

Adding to 400511034 its reverse (430115004), we get a palindrome (830626038).

The spelling of 400511034 in words is "four hundred million, five hundred eleven thousand, thirty-four".