93422640 has 80 divisors (see below), whose sum is σ = 292668768. Its totient is φ = 24649728.

The previous prime is 93422587. The next prime is 93422683. The reversal of 93422640 is 4622439.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 93422598 and 93422607.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21274 + ... + 25286.

Almost surely, 2^93422640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 93422640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146334384).

93422640 is an abundant number, since it is smaller than the sum of its proper divisors (199246128).

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

93422640 is a wasteful number, since it uses less digits than its factorization.

93422640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4126 (or 4120 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 93422640 is about 9665.5387847755. The cubic root of 93422640 is about 453.7507737011.

The spelling of 93422640 in words is "ninety-three million, four hundred twenty-two thousand, six hundred forty".