20075304 has 16 divisors (see below), whose sum is σ = 50188320. Its totient is φ = 6691760.

The previous prime is 20075303. The next prime is 20075309. The reversal of 20075304 is 40357002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20075303) 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, 418212 + ... + 418259.

It is an arithmetic number, because the mean of its divisors is an integer number (3136770).

Almost surely, 2^20075304 is an apocalyptic number.

20075304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20075304 is an abundant number, since it is smaller than the sum of its proper divisors (30113016).

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

20075304 is a wasteful number, since it uses less digits than its factorization.

20075304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836480 (or 836476 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 20075304 is about 4480.5472879995. The cubic root of 20075304 is about 271.7820124857.

The spelling of 20075304 in words is "twenty million, seventy-five thousand, three hundred four".