22893840 has 100 divisors (see below), whose sum is σ = 79536204. Its totient is φ = 6103296.

The previous prime is 22893823. The next prime is 22893859. The reversal of 22893840 is 4839822.

It can be written as a sum of positive squares in 2 ways, for example, as 13749264 + 9144576 = 3708^2 + 3024^2 .

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 = 22893795 and 22893804.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4714 + ... + 8246.

Almost surely, 2^22893840 is an apocalyptic number.

22893840 is a gapful number since it is divisible by the number (20) 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 22893840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39768102).

22893840 is an abundant number, since it is smaller than the sum of its proper divisors (56642364).

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

22893840 is a wasteful number, since it uses less digits than its factorization.

22893840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3558 (or 3543 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 22893840 is about 4784.7507772088. The cubic root of 22893840 is about 283.9484797107.

The spelling of 22893840 in words is "twenty-two million, eight hundred ninety-three thousand, eight hundred forty".