89242290 has 64 divisors (see below), whose sum is σ = 240364800. Its totient is φ = 23559552.

The previous prime is 89242253. The next prime is 89242291. The reversal of 89242290 is 9224298.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89242291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26206 + ... + 29414.

It is an arithmetic number, because the mean of its divisors is an integer number (3755700).

Almost surely, 2^89242290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89242290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120182400).

89242290 is an abundant number, since it is smaller than the sum of its proper divisors (151122510).

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

89242290 is a wasteful number, since it uses less digits than its factorization.

89242290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3328 (or 3322 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 89242290 is about 9446.8137485609. The cubic root of 89242290 is about 446.8792971696.

The spelling of 89242290 in words is "eighty-nine million, two hundred forty-two thousand, two hundred ninety".