120737640 has 32 divisors (see below), whose sum is σ = 362213280. Its totient is φ = 32196672.

The previous prime is 120737633. The next prime is 120737641. The reversal of 120737640 is 46737021.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 120737598 and 120737607.

It is not an unprimeable number, because it can be changed into a prime (120737641) 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, 502954 + ... + 503193.

It is an arithmetic number, because the mean of its divisors is an integer number (11319165).

Almost surely, 2^120737640 is an apocalyptic number.

120737640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120737640 is an abundant number, since it is smaller than the sum of its proper divisors (241475640).

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

120737640 is a wasteful number, since it uses less digits than its factorization.

120737640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006161 (or 1006157 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 120737640 is about 10988.0680740520. The cubic root of 120737640 is about 494.2510047877.

The spelling of 120737640 in words is "one hundred twenty million, seven hundred thirty-seven thousand, six hundred forty".