22052464 has 80 divisors (see below), whose sum is σ = 52814080. Its totient is φ = 8709120.

The previous prime is 22052461. The next prime is 22052467. The reversal of 22052464 is 46425022.

It is an interprime number because it is at equal distance from previous prime (22052461) and next prime (22052467).

It is a super-2 number, since 2×22052464² = 972622336942592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22052461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91384 + ... + 91624.

It is an arithmetic number, because the mean of its divisors is an integer number (660176).

Almost surely, 2^22052464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22052464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26407040).

22052464 is an abundant number, since it is smaller than the sum of its proper divisors (30761616).

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

22052464 is a wasteful number, since it uses less digits than its factorization.

22052464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 22052464 is about 4696.0051107298. The cubic root of 22052464 is about 280.4264928980.

Adding to 22052464 its reverse (46425022), we get a palindrome (68477486).

The spelling of 22052464 in words is "twenty-two million, fifty-two thousand, four hundred sixty-four".