123470446440 has 128 divisors (see below), whose sum is σ = 421654118400. Its totient is φ = 28630821120.

The previous prime is 123470446399. The next prime is 123470446453. The reversal of 123470446440 is 44644074321.

It is a super-2 number, since 2×123470446440² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2003080 + ... + 2063799.

It is an arithmetic number, because the mean of its divisors is an integer number (3294172800).

Almost surely, 2^123470446440 is an apocalyptic number.

123470446440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123470446440 is an abundant number, since it is smaller than the sum of its proper divisors (298183671960).

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

123470446440 is a wasteful number, since it uses less digits than its factorization.

123470446440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4066927 (or 4066923 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 39.

The spelling of 123470446440 in words is "one hundred twenty-three billion, four hundred seventy million, four hundred forty-six thousand, four hundred forty".