57340069 has 4 divisors (see below), whose sum is σ = 57355596. Its totient is φ = 57324544.

The previous prime is 57340057. The next prime is 57340093. The reversal of 57340069 is 96004375.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 31787044 + 25553025 = 5638^2 + 5055^2 .

It is a cyclic number.

It is not a de Polignac number, because 57340069 - 2⁵ = 57340037 is a prime.

It is a super-2 number, since 2×57340069² = 6575767025849522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57340009) 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, 1317 + ... + 10789.

It is an arithmetic number, because the mean of its divisors is an integer number (14338899).

Almost surely, 2^57340069 is an apocalyptic number.

It is an amenable number.

57340069 is a deficient number, since it is larger than the sum of its proper divisors (15527).

57340069 is an equidigital number, since it uses as much as digits as its factorization.

57340069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15526.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 57340069 is about 7572.3225631242. The cubic root of 57340069 is about 385.6139504323.

The spelling of 57340069 in words is "fifty-seven million, three hundred forty thousand, sixty-nine".