22940148 has 144 divisors (see below), whose sum is σ = 70189952. Its totient is φ = 5702400.

The previous prime is 22940147. The next prime is 22940161. The reversal of 22940148 is 84104922.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22940147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 376038 + ... + 376098.

Almost surely, 2^22940148 is an apocalyptic number.

22940148 is a gapful number since it is divisible by the number (28) 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 22940148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35094976).

22940148 is an abundant number, since it is smaller than the sum of its proper divisors (47249804).

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

22940148 is a wasteful number, since it uses less digits than its factorization.

22940148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 22940148 is about 4789.5874561386. The cubic root of 22940148 is about 284.1398009056.

The spelling of 22940148 in words is "twenty-two million, nine hundred forty thousand, one hundred forty-eight".