20740522 has 16 divisors (see below), whose sum is σ = 34038144. Its totient is φ = 9400000.

The previous prime is 20740513. The next prime is 20740553. The reversal of 20740522 is 22504702.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 20740493 and 20740502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7647 + ... + 9997.

It is an arithmetic number, because the mean of its divisors is an integer number (2127384).

Almost surely, 2^20740522 is an apocalyptic number.

20740522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20740522 is a deficient number, since it is larger than the sum of its proper divisors (13297622).

20740522 is a wasteful number, since it uses less digits than its factorization.

20740522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2765.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 20740522 is about 4554.1763250889. The cubic root of 20740522 is about 274.7513874318.

The spelling of 20740522 in words is "twenty million, seven hundred forty thousand, five hundred twenty-two".