89634240 has 84 divisors (see below), whose sum is σ = 308314344. Its totient is φ = 23901696.

The previous prime is 89634227. The next prime is 89634247. The reversal of 89634240 is 4243698.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 89634195 and 89634204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89634247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12682 + ... + 18441.

Almost surely, 2^89634240 is an apocalyptic number.

89634240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

89634240 is an abundant number, since it is smaller than the sum of its proper divisors (218680104).

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

89634240 is a wasteful number, since it uses less digits than its factorization.

89634240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31146 (or 31133 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 89634240 is about 9467.5361103087. The cubic root of 89634240 is about 447.5325694385.

It can be divided in two parts, 8963 and 4240, that added together give a triangular number (13203 = T₁₆₂).

The spelling of 89634240 in words is "eighty-nine million, six hundred thirty-four thousand, two hundred forty".