442740356 has 24 divisors (see below), whose sum is σ = 819168000. Its totient is φ = 208795104.

The previous prime is 442740313. The next prime is 442740371. The reversal of 442740356 is 653047244.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4685 + ... + 30123.

It is an arithmetic number, because the mean of its divisors is an integer number (34132000).

Almost surely, 2^442740356 is an apocalyptic number.

It is an amenable number.

442740356 is a deficient number, since it is larger than the sum of its proper divisors (376427644).

442740356 is a wasteful number, since it uses less digits than its factorization.

442740356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25691 (or 25689 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 35.

The square root of 442740356 is about 21041.3962464471. The cubic root of 442740356 is about 762.1662319919.

The spelling of 442740356 in words is "four hundred forty-two million, seven hundred forty thousand, three hundred fifty-six".