18401407140400 has 60 divisors (see below), whose sum is σ = 44706115355400. Its totient is φ = 7277859888640.

The previous prime is 18401407140353. The next prime is 18401407140427. The reversal of 18401407140400 is 404170410481.

It is a super-2 number, since 2×18401407140400² (a number of 27 digits) contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 258411130 + ... + 258482329.

It is an arithmetic number, because the mean of its divisors is an integer number (745101922590).

Almost surely, 2^{18401407140400} is an apocalyptic number.

18401407140400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18401407140400 is an abundant number, since it is smaller than the sum of its proper divisors (26304708215000).

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

18401407140400 is a wasteful number, since it uses less digits than its factorization.

18401407140400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516893566 (or 516893555 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

Adding to 18401407140400 its reverse (404170410481), we get a palindrome (18805577550881).

The spelling of 18401407140400 in words is "eighteen trillion, four hundred one billion, four hundred seven million, one hundred forty thousand, four hundred".