89388142 has 16 divisors (see below), whose sum is σ = 145273392. Its totient is φ = 41086080.

The previous prime is 89388139. The next prime is 89388149. The reversal of 89388142 is 24188398.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89388149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29109 + ... + 32032.

It is an arithmetic number, because the mean of its divisors is an integer number (9079587).

Almost surely, 2^89388142 is an apocalyptic number.

89388142 is a deficient number, since it is larger than the sum of its proper divisors (55885250).

89388142 is a wasteful number, since it uses less digits than its factorization.

89388142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61203.

The product of its digits is 110592, while the sum is 43.

The square root of 89388142 is about 9454.5302368759. The cubic root of 89388142 is about 447.1226151590.

The spelling of 89388142 in words is "eighty-nine million, three hundred eighty-eight thousand, one hundred forty-two".