20239692 has 48 divisors (see below), whose sum is σ = 52036992. Its totient is φ = 6071680.

The previous prime is 20239679. The next prime is 20239699. The reversal of 20239692 is 29693202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (20239699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13408 + ... + 14840.

It is an arithmetic number, because the mean of its divisors is an integer number (1084104).

Almost surely, 2^20239692 is an apocalyptic number.

20239692 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20239692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26018496).

20239692 is an abundant number, since it is smaller than the sum of its proper divisors (31797300).

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

20239692 is a wasteful number, since it uses less digits than its factorization.

20239692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558 (or 1556 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 20239692 is about 4498.8545208753. The cubic root of 20239692 is about 272.5218319910.

The spelling of 20239692 in words is "twenty million, two hundred thirty-nine thousand, six hundred ninety-two".