400415034 has 32 divisors (see below), whose sum is σ = 827850240. Its totient is φ = 128980800.

The previous prime is 400415021. The next prime is 400415039. The reversal of 400415034 is 430514004.

It is a self number, because there is not a number n which added to its sum of digits gives 400415034.

It is not an unprimeable number, because it can be changed into a prime (400415039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196332 + ... + 198360.

It is an arithmetic number, because the mean of its divisors is an integer number (25870320).

Almost surely, 2^400415034 is an apocalyptic number.

400415034 is an abundant number, since it is smaller than the sum of its proper divisors (427435206).

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

400415034 is a wasteful number, since it uses less digits than its factorization.

400415034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3126.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 400415034 is about 20010.3731599388. The cubic root of 400415034 is about 737.0610446967.

Adding to 400415034 its reverse (430514004), we get a palindrome (830929038).

The spelling of 400415034 in words is "four hundred million, four hundred fifteen thousand, thirty-four".