20946492 has 96 divisors (see below), whose sum is σ = 62899200. Its totient is φ = 5904576.

The previous prime is 20946487. The next prime is 20946503. The reversal of 20946492 is 29464902.

20946492 is a `hidden beast` number, since 2 + 0 + 9 + 4 + 649 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77734 + ... + 78002.

It is an arithmetic number, because the mean of its divisors is an integer number (655200).

Almost surely, 2^20946492 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 20946492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31449600).

20946492 is an abundant number, since it is smaller than the sum of its proper divisors (41952708).

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

20946492 is a wasteful number, since it uses less digits than its factorization.

20946492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 20946492 is about 4576.7337698407. The cubic root of 20946492 is about 275.6578937095.

The spelling of 20946492 in words is "twenty million, nine hundred forty-six thousand, four hundred ninety-two".