22420526 has 4 divisors (see below), whose sum is σ = 33630792. Its totient is φ = 11210262.

The previous prime is 22420523. The next prime is 22420529. The reversal of 22420526 is 62502422.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (22420523) and next prime (22420529).

It is a super-2 number, since 2×22420526² = 1005359972233352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22420523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605130 + ... + 5605133.

It is an arithmetic number, because the mean of its divisors is an integer number (8407698).

Almost surely, 2^22420526 is an apocalyptic number.

22420526 is a deficient number, since it is larger than the sum of its proper divisors (11210266).

22420526 is a wasteful number, since it uses less digits than its factorization.

22420526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11210265.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 22420526 is about 4735.0317844762. The cubic root of 22420526 is about 281.9780258853.

Adding to 22420526 its reverse (62502422), we get a palindrome (84922948).

The spelling of 22420526 in words is "twenty-two million, four hundred twenty thousand, five hundred twenty-six".