20948190 has 16 divisors (see below), whose sum is σ = 50275728. Its totient is φ = 5586176.

The previous prime is 20948189. The next prime is 20948201. The reversal of 20948190 is 9184902.

It is a super-2 number, since 2×20948190² = 877653328552200, which contains 22 as substring.

It is a congruent number.

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, 349107 + ... + 349166.

It is an arithmetic number, because the mean of its divisors is an integer number (3142233).

Almost surely, 2^20948190 is an apocalyptic number.

20948190 is an abundant number, since it is smaller than the sum of its proper divisors (29327538).

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

20948190 is a wasteful number, since it uses less digits than its factorization.

20948190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698283.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 20948190 is about 4576.9192695524. The cubic root of 20948190 is about 275.6653421239.

The spelling of 20948190 in words is "twenty million, nine hundred forty-eight thousand, one hundred ninety".