20922741 has 24 divisors (see below), whose sum is σ = 34856640. Its totient is φ = 11846016.

The previous prime is 20922739. The next prime is 20922761. The reversal of 20922741 is 14722902.

It is not a de Polignac number, because 20922741 - 2¹ = 20922739 is a prime.

It is a super-2 number, since 2×20922741² = 875522181906162, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20922721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5650 + ... + 8588.

It is an arithmetic number, because the mean of its divisors is an integer number (1452360).

Almost surely, 2^20922741 is an apocalyptic number.

20922741 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20922741 is a deficient number, since it is larger than the sum of its proper divisors (13933899).

20922741 is a wasteful number, since it uses less digits than its factorization.

20922741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3065 (or 3062 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 20922741 is about 4574.1382795014. The cubic root of 20922741 is about 275.5536658070.

It can be divided in two parts, 20 and 922741, that added together give a triangular number (922761 = T₁₃₅₈).

The spelling of 20922741 in words is "twenty million, nine hundred twenty-two thousand, seven hundred forty-one".