98236440 has 48 divisors (see below), whose sum is σ = 319269600. Its totient is φ = 26196288.

The previous prime is 98236433. The next prime is 98236447. The reversal of 98236440 is 4463289.

It is a happy number.

98236440 is a `hidden beast` number, since 9 + 8 + 2 + 3 + 644 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (98236433) and next prime (98236447).

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 = 98236395 and 98236404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98236447) 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, 136080 + ... + 136799.

It is an arithmetic number, because the mean of its divisors is an integer number (6651450).

Almost surely, 2^98236440 is an apocalyptic number.

98236440 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

98236440 is an abundant number, since it is smaller than the sum of its proper divisors (221033160).

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

98236440 is a wasteful number, since it uses less digits than its factorization.

98236440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272896 (or 272889 counting only the distinct ones).

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

The square root of 98236440 is about 9911.4297656796. The cubic root of 98236440 is about 461.4141108586.

The spelling of 98236440 in words is "ninety-eight million, two hundred thirty-six thousand, four hundred forty".