87444242 has 16 divisors (see below), whose sum is σ = 135838464. Its totient is φ = 42174000.

The previous prime is 87444233. The next prime is 87444257. The reversal of 87444242 is 24244478.

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, 18392 + ... + 22652.

It is an arithmetic number, because the mean of its divisors is an integer number (8489904).

Almost surely, 2^87444242 is an apocalyptic number.

87444242 is a deficient number, since it is larger than the sum of its proper divisors (48394222).

87444242 is a wasteful number, since it uses less digits than its factorization.

87444242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4625.

The product of its digits is 57344, while the sum is 35.

The square root of 87444242 is about 9351.1626015165. The cubic root of 87444242 is about 443.8576803550.

The spelling of 87444242 in words is "eighty-seven million, four hundred forty-four thousand, two hundred forty-two".