442157470 has 32 divisors (see below), whose sum is σ = 817413120. Its totient is φ = 172142880.

The previous prime is 442157467. The next prime is 442157477. The reversal of 442157470 is 74751244.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442157477) 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, 52149 + ... + 60031.

It is an arithmetic number, because the mean of its divisors is an integer number (25544160).

Almost surely, 2^442157470 is an apocalyptic number.

442157470 is a deficient number, since it is larger than the sum of its proper divisors (375255650).

442157470 is a wasteful number, since it uses less digits than its factorization.

442157470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8040.

The product of its (nonzero) digits is 31360, while the sum is 34.

The square root of 442157470 is about 21027.5407501686. The cubic root of 442157470 is about 761.8316106400.

The spelling of 442157470 in words is "four hundred forty-two million, one hundred fifty-seven thousand, four hundred seventy".