442465155 has 48 divisors (see below), whose sum is σ = 840359520. Its totient is φ = 213580800.

The previous prime is 442465091. The next prime is 442465169. The reversal of 442465155 is 551564244.

442465155 is a `hidden beast` number, since 4 + 42 + 465 + 155 = 666.

It is not a de Polignac number, because 442465155 - 2⁶ = 442465091 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 117441 + ... + 121149.

It is an arithmetic number, because the mean of its divisors is an integer number (17507490).

Almost surely, 2^442465155 is an apocalyptic number.

442465155 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

442465155 is a deficient number, since it is larger than the sum of its proper divisors (397894365).

442465155 is a wasteful number, since it uses less digits than its factorization.

442465155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3972 (or 3969 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

The square root of 442465155 is about 21034.8557161679. The cubic root of 442465155 is about 762.0082820932.

The spelling of 442465155 in words is "four hundred forty-two million, four hundred sixty-five thousand, one hundred fifty-five".