1957378150 has 48 divisors (see below), whose sum is σ = 4480900704. Its totient is φ = 619476480.

The previous prime is 1957378117. The next prime is 1957378151. The reversal of 1957378150 is 518737591.

It is a self number, because there is not a number n which added to its sum of digits gives 1957378150.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1957378151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 210547 + ... + 219646.

It is an arithmetic number, because the mean of its divisors is an integer number (93352098).

Almost surely, 2^1957378150 is an apocalyptic number.

1957378150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1957378150 is an abundant number, since it is smaller than the sum of its proper divisors (2523522554).

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

1957378150 is a wasteful number, since it uses less digits than its factorization.

1957378150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430225 (or 430220 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 46.

The square root of 1957378150 is about 44242.2665558626. The cubic root of 1957378150 is about 1250.9066808515.

The spelling of 1957378150 in words is "one billion, nine hundred fifty-seven million, three hundred seventy-eight thousand, one hundred fifty".