57746490 has 48 divisors (see below), whose sum is σ = 143277984. Its totient is φ = 14894880.

The previous prime is 57746489. The next prime is 57746497. The reversal of 57746490 is 9464775.

It is not an unprimeable number, because it can be changed into a prime (57746497) 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, 27829 + ... + 29831.

It is an arithmetic number, because the mean of its divisors is an integer number (2984958).

Almost surely, 2^57746490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57746490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71638992).

57746490 is an abundant number, since it is smaller than the sum of its proper divisors (85531494).

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

57746490 is a wasteful number, since it uses less digits than its factorization.

57746490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2075 (or 2044 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 57746490 is about 7599.1111322312. Note that the first 4 decimals coincide. The cubic root of 57746490 is about 386.5228714555.

The spelling of 57746490 in words is "fifty-seven million, seven hundred forty-six thousand, four hundred ninety".