113720401840 has 40 divisors (see below), whose sum is σ = 265769918208. Its totient is φ = 45252464640.

The previous prime is 113720401819. The next prime is 113720401849. The reversal of 113720401840 is 48104027311.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (113720401849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3667216 + ... + 3698095.

Almost surely, 2^113720401840 is an apocalyptic number.

113720401840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113720401840 is an abundant number, since it is smaller than the sum of its proper divisors (152049516368).

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

113720401840 is a wasteful number, since it uses less digits than its factorization.

113720401840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7365517 (or 7365511 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The spelling of 113720401840 in words is "one hundred thirteen billion, seven hundred twenty million, four hundred one thousand, eight hundred forty".