22274940 has 24 divisors (see below), whose sum is σ = 62370000. Its totient is φ = 5939968.

The previous prime is 22274933. The next prime is 22274951. The reversal of 22274940 is 4947222.

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 = 22274898 and 22274907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185565 + ... + 185684.

It is an arithmetic number, because the mean of its divisors is an integer number (2598750).

Almost surely, 2^22274940 is an apocalyptic number.

22274940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22274940 is an abundant number, since it is smaller than the sum of its proper divisors (40095060).

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

22274940 is a wasteful number, since it uses less digits than its factorization.

22274940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371261 (or 371259 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 22274940 is about 4719.6334603441. The cubic root of 22274940 is about 281.3663656748.

The spelling of 22274940 in words is "twenty-two million, two hundred seventy-four thousand, nine hundred forty".