20299452 has 12 divisors (see below), whose sum is σ = 47365416. Its totient is φ = 6766480.

The previous prime is 20299439. The next prime is 20299453. The reversal of 20299452 is 25499202.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20299453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 845799 + ... + 845822.

It is an arithmetic number, because the mean of its divisors is an integer number (3947118).

Almost surely, 2^20299452 is an apocalyptic number.

It is an amenable number.

20299452 is an abundant number, since it is smaller than the sum of its proper divisors (27065964).

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

20299452 is a wasteful number, since it uses less digits than its factorization.

20299452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691628 (or 1691626 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 20299452 is about 4505.4913161608. The cubic root of 20299452 is about 272.7897857104.

The spelling of 20299452 in words is "twenty million, two hundred ninety-nine thousand, four hundred fifty-two".