1957378160 has 20 divisors (see below), whose sum is σ = 4550904408. Its totient is φ = 782951232.

The previous prime is 1957378151. The next prime is 1957378169. The reversal of 1957378160 is 618737591.

It is an interprime number because it is at equal distance from previous prime (1957378151) and next prime (1957378169).

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×1957378160² = 7662658522489971200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1957378169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12233534 + ... + 12233693.

Almost surely, 2^1957378160 is an apocalyptic number.

1957378160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1957378160 is an abundant number, since it is smaller than the sum of its proper divisors (2593526248).

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

1957378160 is a wasteful number, since it uses less digits than its factorization.

1957378160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24467240 (or 24467234 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 47.

The square root of 1957378160 is about 44242.2666688767. The cubic root of 1957378160 is about 1250.9066829818.

The spelling of 1957378160 in words is "one billion, nine hundred fifty-seven million, three hundred seventy-eight thousand, one hundred sixty".