93898440 has 160 divisors (see below), whose sum is σ = 320732280. Its totient is φ = 24634368.

The previous prime is 93898439. The next prime is 93898447. The reversal of 93898440 is 4489839.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 83283876 + 10614564 = 9126^2 + 3258^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (93898447) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 236322 + ... + 236718.

Almost surely, 2^93898440 is an apocalyptic number.

93898440 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 93898440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160366140).

93898440 is an abundant number, since it is smaller than the sum of its proper divisors (226833840).

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

93898440 is a wasteful number, since it uses less digits than its factorization.

93898440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 93898440 is about 9690.1207422818. The cubic root of 93898440 is about 454.5197847807.

The spelling of 93898440 in words is "ninety-three million, eight hundred ninety-eight thousand, four hundred forty".