400134042330 has 64 divisors (see below), whose sum is σ = 1053108781056. Its totient is φ = 96494312000.

The previous prime is 400134042317. The next prime is 400134042331. The reversal of 400134042330 is 33240431004.

It is a self number, because there is not a number n which added to its sum of digits gives 400134042330.

It is not an unprimeable number, because it can be changed into a prime (400134042331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3111126 + ... + 3237185.

It is an arithmetic number, because the mean of its divisors is an integer number (16454824704).

Almost surely, 2^400134042330 is an apocalyptic number.

400134042330 is an abundant number, since it is smaller than the sum of its proper divisors (652974738726).

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

400134042330 is a wasteful number, since it uses less digits than its factorization.

400134042330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6348523.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 400134042330 its reverse (33240431004), we get a palindrome (433374473334).

The spelling of 400134042330 in words is "four hundred billion, one hundred thirty-four million, forty-two thousand, three hundred thirty".