83994240 has 256 divisors, whose sum is σ = 302279040. Its totient is φ = 19660800.

The previous prime is 83994233. The next prime is 83994277. The reversal of 83994240 is 4249938.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 865872 + ... + 865968.

Almost surely, 2^83994240 is an apocalyptic number.

83994240 is a gapful number since it is divisible by the number (80) 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 83994240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151139520).

83994240 is an abundant number, since it is smaller than the sum of its proper divisors (218284800).

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

83994240 is a wasteful number, since it uses less digits than its factorization.

83994240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 83994240 is about 9164.8371507627. The cubic root of 83994240 is about 437.9419034305.

The spelling of 83994240 in words is "eighty-three million, nine hundred ninety-four thousand, two hundred forty".