57409349 has 4 divisors (see below), whose sum is σ = 57476736. Its totient is φ = 57341964.

The previous prime is 57409337. The next prime is 57409351. The reversal of 57409349 is 94390475.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57409349 - 2¹² = 57405253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57409369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32399 + ... + 34124.

It is an arithmetic number, because the mean of its divisors is an integer number (14369184).

Almost surely, 2^57409349 is an apocalyptic number.

It is an amenable number.

57409349 is a deficient number, since it is larger than the sum of its proper divisors (67387).

57409349 is an equidigital number, since it uses as much as digits as its factorization.

57409349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67386.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 57409349 is about 7576.8957363818. The cubic root of 57409349 is about 385.7691913935.

The spelling of 57409349 in words is "fifty-seven million, four hundred nine thousand, three hundred forty-nine".