742998564 has 243 divisors, whose sum is σ = 2442833211. Its totient is φ = 189715680.

The previous prime is 742998559. The next prime is 742998569. The reversal of 742998564 is 465899247.

The square root of 742998564 is 27258.

It is a perfect power (a square), and thus also a powerful number.

742998564 is a `hidden beast` number, since 74 + 2 + 9 + 9 + 8 + 564 = 666.

It is an interprime number because it is at equal distance from previous prime (742998559) and next prime (742998569).

It is a super-2 number, since 2×742998564² = 1104093732212124192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 742998564.

It is not an unprimeable number, because it can be changed into a prime (742998569) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 12593167 + ... + 12593225.

Almost surely, 2^742998564 is an apocalyptic number.

742998564 is the 27258-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 742998564

742998564 is an abundant number, since it is smaller than the sum of its proper divisors (1699834647).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

742998564 is a wasteful number, since it uses less digits than its factorization.

742998564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 82 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The cubic root of 742998564 is about 905.7242410323.

The spelling of 742998564 in words is "seven hundred forty-two million, nine hundred ninety-eight thousand, five hundred sixty-four".