57630378 has 16 divisors (see below), whose sum is σ = 124127136. Its totient is φ = 17732400.

The previous prime is 57630359. The next prime is 57630383. The reversal of 57630378 is 87303675.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon 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 7 ways as a sum of consecutive naturals, for example, 369348 + ... + 369503.

It is an arithmetic number, because the mean of its divisors is an integer number (7757946).

Almost surely, 2^57630378 is an apocalyptic number.

57630378 is an abundant number, since it is smaller than the sum of its proper divisors (66496758).

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

57630378 is a wasteful number, since it uses less digits than its factorization.

57630378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738869.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 57630378 is about 7591.4674470750. The cubic root of 57630378 is about 386.2636345875.

The spelling of 57630378 in words is "fifty-seven million, six hundred thirty thousand, three hundred seventy-eight".