1240965120 has 112 divisors (see below), whose sum is σ = 3971239200. Its totient is φ = 330891264.

The previous prime is 1240965091. The next prime is 1240965127. The reversal of 1240965120 is 215690421.

It is a super-2 number, since 2×1240965120² = 3079988858113228800, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (1240965127) 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, 117831 + ... + 127929.

Almost surely, 2^1240965120 is an apocalyptic number.

1240965120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1240965120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1985619600).

1240965120 is an abundant number, since it is smaller than the sum of its proper divisors (2730274080).

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

1240965120 is an equidigital number, since it uses as much as digits as its factorization.

1240965120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10133 (or 10109 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1240965120 is about 35227.3348410010. The cubic root of 1240965120 is about 1074.6157256409.

The spelling of 1240965120 in words is "one billion, two hundred forty million, nine hundred sixty-five thousand, one hundred twenty".