57343140 has 216 divisors, whose sum is σ = 198394560. Its totient is φ = 13856832.

The previous prime is 57343129. The next prime is 57343141. The reversal of 57343140 is 4134375.

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

It is not an unprimeable number, because it can be changed into a prime (57343141) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2493169 + ... + 2493191.

Almost surely, 2^57343140 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 57343140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99197280).

57343140 is an abundant number, since it is smaller than the sum of its proper divisors (141051420).

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

57343140 is a wasteful number, since it uses less digits than its factorization.

57343140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75 (or 52 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 57343140 is about 7572.5253383531. The cubic root of 57343140 is about 385.6208345032.

The spelling of 57343140 in words is "fifty-seven million, three hundred forty-three thousand, one hundred forty".