22775340 has 96 divisors (see below), whose sum is σ = 73511424. Its totient is φ = 5160960.

The previous prime is 22775339. The next prime is 22775369. The reversal of 22775340 is 4357722.

It is a super-2 number, since 2×22775340² = 1037432224231200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 22775298 and 22775307.

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, 88492 + ... + 88748.

It is an arithmetic number, because the mean of its divisors is an integer number (765744).

Almost surely, 2^22775340 is an apocalyptic number.

22775340 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 22775340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36755712).

22775340 is an abundant number, since it is smaller than the sum of its proper divisors (50736084).

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

22775340 is a wasteful number, since it uses less digits than its factorization.

22775340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487 (or 485 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 22775340 is about 4772.3516215803. The cubic root of 22775340 is about 283.4577200868.

The spelling of 22775340 in words is "twenty-two million, seven hundred seventy-five thousand, three hundred forty".