57443946 has 16 divisors (see below), whose sum is σ = 131300544. Its totient is φ = 16412544.

The previous prime is 57443929. The next prime is 57443989. The reversal of 57443946 is 64934475.

57443946 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1367713 = 57443946 / (5 + 7 + 4 + 4 + 3 + 9 + 4 + 6).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 57443898 and 57443907.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 683815 + ... + 683898.

It is an arithmetic number, because the mean of its divisors is an integer number (8206284).

Almost surely, 2^57443946 is an apocalyptic number.

57443946 is an abundant number, since it is smaller than the sum of its proper divisors (73856598).

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

57443946 is a wasteful number, since it uses less digits than its factorization.

57443946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367725.

The product of its digits is 362880, while the sum is 42.

The square root of 57443946 is about 7579.1784515210. The cubic root of 57443946 is about 385.8466687662.

The spelling of 57443946 in words is "fifty-seven million, four hundred forty-three thousand, nine hundred forty-six".