20249934 has 24 divisors (see below), whose sum is σ = 42748200. Its totient is φ = 6394032.

The previous prime is 20249893. The next prime is 20249963. The reversal of 20249934 is 43994202.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20249895 and 20249904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2509 + ... + 6840.

It is an arithmetic number, because the mean of its divisors is an integer number (1781175).

Almost surely, 2^20249934 is an apocalyptic number.

20249934 is an abundant number, since it is smaller than the sum of its proper divisors (22498266).

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

20249934 is a wasteful number, since it uses less digits than its factorization.

20249934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9392 (or 9373 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 20249934 is about 4499.9926666607. The cubic root of 20249934 is about 272.5677928011.

The spelling of 20249934 in words is "twenty million, two hundred forty-nine thousand, nine hundred thirty-four".