57220074 has 64 divisors (see below), whose sum is σ = 133920000. Its totient is φ = 18083520.

The previous prime is 57220049. The next prime is 57220081. The reversal of 57220074 is 47002275.

57220074 is a `hidden beast` number, since 572 + 20 + 0 + 74 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95227 + ... + 95825.

It is an arithmetic number, because the mean of its divisors is an integer number (2092500).

Almost surely, 2^57220074 is an apocalyptic number.

57220074 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 57220074, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66960000).

57220074 is an abundant number, since it is smaller than the sum of its proper divisors (76699926).

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

57220074 is a wasteful number, since it uses less digits than its factorization.

57220074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700 (or 694 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 57220074 is about 7564.3951509688. The cubic root of 57220074 is about 385.3447723989.

The spelling of 57220074 in words is "fifty-seven million, two hundred twenty thousand, seventy-four".