20930192 has 10 divisors (see below), whose sum is σ = 40552278. Its totient is φ = 10465088.

The previous prime is 20930183. The next prime is 20930201. The reversal of 20930192 is 29103902.

It is an interprime number because it is at equal distance from previous prime (20930183) and next prime (20930201).

It can be written as a sum of positive squares in only one way, i.e., 20757136 + 173056 = 4556^2 + 416^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 654053 + ... + 654084.

Almost surely, 2^20930192 is an apocalyptic number.

It is an amenable number.

20930192 is a deficient number, since it is larger than the sum of its proper divisors (19622086).

20930192 is a wasteful number, since it uses less digits than its factorization.

20930192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308145 (or 1308139 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 20930192 is about 4574.9526773509. The cubic root of 20930192 is about 275.5863719534.

It can be divided in two parts, 209 and 30192, that multiplied together give a triangular number (6310128 = T₃₅₅₂).

The spelling of 20930192 in words is "twenty million, nine hundred thirty thousand, one hundred ninety-two".