742511648 has 18 divisors (see below), whose sum is σ = 1462123341. Its totient is φ = 371178752.

The previous prime is 742511647. The next prime is 742511657. The reversal of 742511648 is 846115247.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 585059344 + 157452304 = 24188^2 + 12548^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=19268.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (742511647) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 151736 + ... + 156552.

Almost surely, 2^742511648 is an apocalyptic number.

It is an amenable number.

742511648 is a deficient number, since it is larger than the sum of its proper divisors (719611693).

742511648 is an frugal number, since it uses more digits than its factorization.

742511648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9644 (or 4819 counting only the distinct ones).

The product of its digits is 53760, while the sum is 38.

The square root of 742511648 is about 27249.0669198048. The cubic root of 742511648 is about 905.5263456310.

The spelling of 742511648 in words is "seven hundred forty-two million, five hundred eleven thousand, six hundred forty-eight".