89142456 has 64 divisors (see below), whose sum is σ = 245145600. Its totient is φ = 26840448.

The previous prime is 89142439. The next prime is 89142467. The reversal of 89142456 is 65424198.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11625 + ... + 17703.

It is an arithmetic number, because the mean of its divisors is an integer number (3830400).

Almost surely, 2^89142456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89142456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122572800).

89142456 is an abundant number, since it is smaller than the sum of its proper divisors (156003144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89142456 is a wasteful number, since it uses less digits than its factorization.

89142456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6148 (or 6144 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 89142456 is about 9441.5282661230. The cubic root of 89142456 is about 446.7125959553.

It can be divided in two parts, 89142 and 456, that added together give a palindrome (89598).

The spelling of 89142456 in words is "eighty-nine million, one hundred forty-two thousand, four hundred fifty-six".