1957961260 has 24 divisors (see below), whose sum is σ = 4129841520. Its totient is φ = 779732544.

The previous prime is 1957961237. The next prime is 1957961263. The reversal of 1957961260 is 621697591.

It is a super-2 number, since 2×1957961260² = 7667224591321575200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1957961260.

It is not an unprimeable number, because it can be changed into a prime (1957961263) 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, 211095 + ... + 220174.

It is an arithmetic number, because the mean of its divisors is an integer number (172076730).

Almost surely, 2^1957961260 is an apocalyptic number.

1957961260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1957961260 is an abundant number, since it is smaller than the sum of its proper divisors (2171880260).

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

1957961260 is a wasteful number, since it uses less digits than its factorization.

1957961260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431505 (or 431503 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 46.

The square root of 1957961260 is about 44248.8560304105. The cubic root of 1957961260 is about 1251.0308850538.

The spelling of 1957961260 in words is "one billion, nine hundred fifty-seven million, nine hundred sixty-one thousand, two hundred sixty".