742570746 has 32 divisors (see below), whose sum is σ = 1509436608. Its totient is φ = 243492480.

The previous prime is 742570739. The next prime is 742570783. The reversal of 742570746 is 647075247.

It is a super-2 number, since 2×742570746² = 1102822625629993032, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 742570698 and 742570707.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182385 + ... + 186411.

It is an arithmetic number, because the mean of its divisors is an integer number (47169894).

Almost surely, 2^742570746 is an apocalyptic number.

742570746 is an abundant number, since it is smaller than the sum of its proper divisors (766865862).

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

742570746 is a wasteful number, since it uses less digits than its factorization.

742570746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4526.

The product of its (nonzero) digits is 329280, while the sum is 42.

The square root of 742570746 is about 27250.1513023322. The cubic root of 742570746 is about 905.5503692165.

The spelling of 742570746 in words is "seven hundred forty-two million, five hundred seventy thousand, seven hundred forty-six".