1207617940 has 12 divisors (see below), whose sum is σ = 2535997716. Its totient is φ = 483047168.

The previous prime is 1207617907. The next prime is 1207617973. The reversal of 1207617940 is 497167021.

It is an interprime number because it is at equal distance from previous prime (1207617907) and next prime (1207617973).

It can be written as a sum of positive squares in 2 ways, for example, as 236298384 + 971319556 = 15372^2 + 31166^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1207617940.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 30190429 + ... + 30190468.

It is an arithmetic number, because the mean of its divisors is an integer number (211333143).

Almost surely, 2^1207617940 is an apocalyptic number.

1207617940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1207617940 is an abundant number, since it is smaller than the sum of its proper divisors (1328379776).

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

1207617940 is a wasteful number, since it uses less digits than its factorization.

1207617940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60380906 (or 60380904 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 1207617940 is about 34750.7976886862. The cubic root of 1207617940 is about 1064.9025133569.

The spelling of 1207617940 in words is "one billion, two hundred seven million, six hundred seventeen thousand, nine hundred forty".