57770436 has 48 divisors (see below), whose sum is σ = 140817600. Its totient is φ = 18410112.

The previous prime is 57770417. The next prime is 57770443. The reversal of 57770436 is 63407775.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 57770394 and 57770403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37171 + ... + 38693.

It is an arithmetic number, because the mean of its divisors is an integer number (2933700).

Almost surely, 2^57770436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57770436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70408800).

57770436 is an abundant number, since it is smaller than the sum of its proper divisors (83047164).

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

57770436 is a wasteful number, since it uses less digits than its factorization.

57770436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668 (or 1666 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 39.

The square root of 57770436 is about 7600.6865479376. The cubic root of 57770436 is about 386.5762911387.

The spelling of 57770436 in words is "fifty-seven million, seven hundred seventy thousand, four hundred thirty-six".