40400213401200 has 120 divisors (see below), whose sum is σ = 130560619286448. Its totient is φ = 10678050467840.

The previous prime is 40400213401159. The next prime is 40400213401213. The reversal of 40400213401200 is 210431200404.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×40400213401200² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148832739 + ... + 149103938.

Almost surely, 2^{40400213401200} is an apocalyptic number.

40400213401200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40400213401200 is an abundant number, since it is smaller than the sum of its proper divisors (90160405885248).

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

40400213401200 is a wasteful number, since it uses less digits than its factorization.

40400213401200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297936811 (or 297936800 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 40400213401200 its reverse (210431200404), we get a palindrome (40610644601604).

The spelling of 40400213401200 in words is "forty trillion, four hundred billion, two hundred thirteen million, four hundred one thousand, two hundred".