742066644 has 48 divisors (see below), whose sum is σ = 1929102336. Its totient is φ = 220082400.

The previous prime is 742066627. The next prime is 742066649. The reversal of 742066644 is 446660247.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742066649) 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, 53602 + ... + 66009.

It is an arithmetic number, because the mean of its divisors is an integer number (40189632).

Almost surely, 2^742066644 is an apocalyptic number.

It is an amenable number.

742066644 is an abundant number, since it is smaller than the sum of its proper divisors (1187035692).

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

742066644 is a wasteful number, since it uses less digits than its factorization.

742066644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119676 (or 119674 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 39.

The square root of 742066644 is about 27240.9002053897. The cubic root of 742066644 is about 905.3454086830.

The spelling of 742066644 in words is "seven hundred forty-two million, sixty-six thousand, six hundred forty-four".