742480457 has 16 divisors (see below), whose sum is σ = 824670720. Its totient is φ = 664891392.

The previous prime is 742480447. The next prime is 742480463. The reversal of 742480457 is 754084247.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 742480457 - 2⁸ = 742480201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (742480447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70544 + ... + 80382.

It is an arithmetic number, because the mean of its divisors is an integer number (51541920).

Almost surely, 2^742480457 is an apocalyptic number.

It is an amenable number.

742480457 is a deficient number, since it is larger than the sum of its proper divisors (82190263).

742480457 is a wasteful number, since it uses less digits than its factorization.

742480457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10072.

The product of its (nonzero) digits is 250880, while the sum is 41.

The square root of 742480457 is about 27248.4945822700. The cubic root of 742480457 is about 905.5136658444.

The spelling of 742480457 in words is "seven hundred forty-two million, four hundred eighty thousand, four hundred fifty-seven".