320401151400 has 144 divisors (see below), whose sum is σ = 1091747311200. Its totient is φ = 77672988800.

The previous prime is 320401151387. The next prime is 320401151431. The reversal of 320401151400 is 4151104023.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2134020 + ... + 2279219.

It is an arithmetic number, because the mean of its divisors is an integer number (7581578550).

Almost surely, 2^320401151400 is an apocalyptic number.

320401151400 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

320401151400 is an abundant number, since it is smaller than the sum of its proper divisors (771346159800).

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

320401151400 is a wasteful number, since it uses less digits than its factorization.

320401151400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4413280 (or 4413260 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 320401151400 its reverse (4151104023), we get a palindrome (324552255423).

The spelling of 320401151400 in words is "three hundred twenty billion, four hundred one million, one hundred fifty-one thousand, four hundred".