22062740 has 72 divisors (see below), whose sum is σ = 55157760. Its totient is φ = 7387968.

The previous prime is 22062721. The next prime is 22062751. The reversal of 22062740 is 4726022.

22062740 = T₂₃₁ + T₂₃₂ + ... + T₅₂₄.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45821 + ... + 46299.

It is an arithmetic number, because the mean of its divisors is an integer number (766080).

Almost surely, 2^22062740 is an apocalyptic number.

22062740 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 22062740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27578880).

22062740 is an abundant number, since it is smaller than the sum of its proper divisors (33095020).

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

22062740 is a wasteful number, since it uses less digits than its factorization.

22062740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549 (or 540 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 22062740 is about 4697.0991047667. The cubic root of 22062740 is about 280.4700438161.

Adding to 22062740 its reverse (4726022), we get a palindrome (26788762).

The spelling of 22062740 in words is "twenty-two million, sixty-two thousand, seven hundred forty".