57402069 has 4 divisors (see below), whose sum is σ = 76536096. Its totient is φ = 38268044.

The previous prime is 57402067. The next prime is 57402071. The reversal of 57402069 is 96020475.

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 an interprime number because it is at equal distance from previous prime (57402067) and next prime (57402071).

It is a cyclic number.

It is not a de Polignac number, because 57402069 - 2¹ = 57402067 is a prime.

It is a super-2 number, since 2×57402069² = 6589995050961522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57402067) 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, 9567009 + ... + 9567014.

It is an arithmetic number, because the mean of its divisors is an integer number (19134024).

Almost surely, 2^57402069 is an apocalyptic number.

It is an amenable number.

57402069 is a deficient number, since it is larger than the sum of its proper divisors (19134027).

57402069 is a wasteful number, since it uses less digits than its factorization.

57402069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19134026.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 57402069 is about 7576.4153133260. The cubic root of 57402069 is about 385.7528844187.

The spelling of 57402069 in words is "fifty-seven million, four hundred two thousand, sixty-nine".