1207489740 has 48 divisors (see below), whose sum is σ = 3385078368. Its totient is φ = 321606144.

The previous prime is 1207489739. The next prime is 1207489747. The reversal of 1207489740 is 479847021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1207489692 and 1207489701.

It is not an unprimeable number, because it can be changed into a prime (1207489747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39384 + ... + 62976.

It is an arithmetic number, because the mean of its divisors is an integer number (70522466).

Almost surely, 2^1207489740 is an apocalyptic number.

1207489740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1207489740 is an abundant number, since it is smaller than the sum of its proper divisors (2177588628).

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

1207489740 is a wasteful number, since it uses less digits than its factorization.

1207489740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24458 (or 24456 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 1207489740 is about 34748.9530777547. The cubic root of 1207489740 is about 1064.8648288849.

The spelling of 1207489740 in words is "one billion, two hundred seven million, four hundred eighty-nine thousand, seven hundred forty".