20492235 has 24 divisors (see below), whose sum is σ = 36279360. Its totient is φ = 10695552.

The previous prime is 20492231. The next prime is 20492237. The reversal of 20492235 is 53229402.

It is not a de Polignac number, because 20492235 - 2² = 20492231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20492199 and 20492208.

It is not an unprimeable number, because it can be changed into a prime (20492231) 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, 2730 + ... + 6959.

It is an arithmetic number, because the mean of its divisors is an integer number (1511640).

Almost surely, 2^20492235 is an apocalyptic number.

20492235 is a deficient number, since it is larger than the sum of its proper divisors (15787125).

20492235 is a wasteful number, since it uses less digits than its factorization.

20492235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9747 (or 9744 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 20492235 is about 4526.8349870522. The cubic root of 20492235 is about 273.6506238402.

The spelling of 20492235 in words is "twenty million, four hundred ninety-two thousand, two hundred thirty-five".