57342978 has 80 divisors (see below), whose sum is σ = 160231104. Its totient is φ = 14891040.

The previous prime is 57342977. The next prime is 57342983. The reversal of 57342978 is 87924375.

57342978 is a `hidden beast` number, since 573 + 4 + 2 + 9 + 78 = 666.

57342978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (57342973) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 10176 + ... + 14772.

Almost surely, 2^57342978 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57342978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80115552).

57342978 is an abundant number, since it is smaller than the sum of its proper divisors (102888126).

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

57342978 is a wasteful number, since it uses less digits than its factorization.

57342978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4629 (or 4620 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 57342978 is about 7572.5146417818. The cubic root of 57342978 is about 385.6204713640.

The spelling of 57342978 in words is "fifty-seven million, three hundred forty-two thousand, nine hundred seventy-eight".