57775740 has 48 divisors (see below), whose sum is σ = 176480640. Its totient is φ = 14006080.

The previous prime is 57775721. The next prime is 57775769. The reversal of 57775740 is 4757775.

It is a happy number.

It is a super-2 number, since 2×57775740² = 6676072265095200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57775692 and 57775701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43110 + ... + 44429.

It is an arithmetic number, because the mean of its divisors is an integer number (3676680).

Almost surely, 2^57775740 is an apocalyptic number.

It is an amenable number.

57775740 is an abundant number, since it is smaller than the sum of its proper divisors (118704900).

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

57775740 is a wasteful number, since it uses less digits than its factorization.

57775740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87562 (or 87560 counting only the distinct ones).

The product of its (nonzero) digits is 240100, while the sum is 42.

The square root of 57775740 is about 7601.0354557784. The cubic root of 57775740 is about 386.5881215145.

The spelling of 57775740 in words is "fifty-seven million, seven hundred seventy-five thousand, seven hundred forty".