400010040321140 has 24 divisors (see below), whose sum is σ = 841205881720680. Its totient is φ = 159778340500608.

The previous prime is 400010040321091. The next prime is 400010040321173. The reversal of 400010040321140 is 41123040010004.

It can be written as a sum of positive squares in 4 ways, for example, as 13359010380004 + 386651029941136 = 3654998^2 + 19663444^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14104712207 + ... + 14104740566.

It is an arithmetic number, because the mean of its divisors is an integer number (35050245071695).

Almost surely, 2^{400010040321140} is an apocalyptic number.

It is an amenable number.

400010040321140 is an abundant number, since it is smaller than the sum of its proper divisors (441195841399540).

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

400010040321140 is a wasteful number, since it uses less digits than its factorization.

400010040321140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28209453491 (or 28209453489 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 400010040321140 its reverse (41123040010004), we get a palindrome (441133080331144).

The spelling of 400010040321140 in words is "four hundred trillion, ten billion, forty million, three hundred twenty-one thousand, one hundred forty".