22609740 has 48 divisors (see below), whose sum is σ = 63786240. Its totient is φ = 5983680.

The previous prime is 22609729. The next prime is 22609751. The reversal of 22609740 is 4790622.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22609729) and next prime (22609751).

It is a super-2 number, since 2×22609740² = 1022400685735200, which contains 22 as substring.

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 = 22609698 and 22609707.

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, 6985 + ... + 9695.

It is an arithmetic number, because the mean of its divisors is an integer number (1328880).

Almost surely, 2^22609740 is an apocalyptic number.

22609740 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 22609740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31893120).

22609740 is an abundant number, since it is smaller than the sum of its proper divisors (41176500).

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

22609740 is a wasteful number, since it uses less digits than its factorization.

22609740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2862 (or 2860 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 22609740 is about 4754.9700314513. The cubic root of 22609740 is about 282.7690391280.

The spelling of 22609740 in words is "twenty-two million, six hundred nine thousand, seven hundred forty".