20492829 has 36 divisors (see below), whose sum is σ = 35568000. Its totient is φ = 11324880.

The previous prime is 20492827. The next prime is 20492831. The reversal of 20492829 is 92829402.

It is an interprime number because it is at equal distance from previous prime (20492827) and next prime (20492831).

It is not a de Polignac number, because 20492829 - 2¹ = 20492827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20492793 and 20492802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20492827) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12922 + ... + 14420.

It is an arithmetic number, because the mean of its divisors is an integer number (988000).

Almost surely, 2^20492829 is an apocalyptic number.

It is an amenable number.

20492829 is a deficient number, since it is larger than the sum of its proper divisors (15075171).

20492829 is a wasteful number, since it uses less digits than its factorization.

20492829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550 (or 1540 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 20492829 is about 4526.9005953301. The cubic root of 20492829 is about 273.6532678808.

It can be divided in two parts, 20492 and 829, that added together give a triangular number (21321 = T₂₀₆).

The spelling of 20492829 in words is "twenty million, four hundred ninety-two thousand, eight hundred twenty-nine".