120049393840 has 40 divisors (see below), whose sum is σ = 279567329760. Its totient is φ = 47941910016.

The previous prime is 120049393819. The next prime is 120049393879. The reversal of 120049393840 is 48393940021.

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

It is a super-2 number, since 2×120049393840² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

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, 1166700 + ... + 1265419.

It is an arithmetic number, because the mean of its divisors is an integer number (6989183244).

Almost surely, 2^120049393840 is an apocalyptic number.

120049393840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120049393840 is an abundant number, since it is smaller than the sum of its proper divisors (159517935920).

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

120049393840 is a wasteful number, since it uses less digits than its factorization.

120049393840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2432749 (or 2432743 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 120049393840 in words is "one hundred twenty billion, forty-nine million, three hundred ninety-three thousand, eight hundred forty".