22601040 has 160 divisors (see below), whose sum is σ = 87422976. Its totient is φ = 4692480.

The previous prime is 22601039. The next prime is 22601053. The reversal of 22601040 is 4010622.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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, 17869 + ... + 19091.

Almost surely, 2^22601040 is an apocalyptic number.

22601040 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 22601040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43711488).

22601040 is an abundant number, since it is smaller than the sum of its proper divisors (64821936).

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

22601040 is a wasteful number, since it uses less digits than its factorization.

22601040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257 (or 1251 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 22601040 is about 4754.0551111656. The cubic root of 22601040 is about 282.7327655833.

Adding to 22601040 its reverse (4010622), we get a palindrome (26611662).

The spelling of 22601040 in words is "twenty-two million, six hundred one thousand, forty".