742564057 has 8 divisors (see below), whose sum is σ = 750308832. Its totient is φ = 734834400.

The previous prime is 742564051. The next prime is 742564073. The reversal of 742564057 is 750465247.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 742564057 - 2¹⁹ = 742039769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (742564051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113557 + ... + 119917.

It is an arithmetic number, because the mean of its divisors is an integer number (93788604).

Almost surely, 2^742564057 is an apocalyptic number.

It is an amenable number.

742564057 is a deficient number, since it is larger than the sum of its proper divisors (7744775).

742564057 is a wasteful number, since it uses less digits than its factorization.

742564057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7559.

The product of its (nonzero) digits is 235200, while the sum is 40.

The square root of 742564057 is about 27250.0285687924. The cubic root of 742564057 is about 905.5476501739.

The spelling of 742564057 in words is "seven hundred forty-two million, five hundred sixty-four thousand, fifty-seven".