20106996 has 48 divisors (see below), whose sum is σ = 57746304. Its totient is φ = 5302656.

The previous prime is 20106973. The next prime is 20107007. The reversal of 20106996 is 69960102.

It is a happy number.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8115 + ... + 10298.

It is an arithmetic number, because the mean of its divisors is an integer number (1203048).

Almost surely, 2^20106996 is an apocalyptic number.

20106996 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20106996 is an abundant number, since it is smaller than the sum of its proper divisors (37639308).

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

20106996 is a wasteful number, since it uses less digits than its factorization.

20106996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18440 (or 18438 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 20106996 is about 4484.0825148518. The cubic root of 20106996 is about 271.9249540657.

The spelling of 20106996 in words is "twenty million, one hundred six thousand, nine hundred ninety-six".