20474360 has 16 divisors (see below), whose sum is σ = 46067400. Its totient is φ = 8189728.

The previous prime is 20474359. The next prime is 20474369. The reversal of 20474360 is 6347402.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20474369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255890 + ... + 255969.

Almost surely, 2^20474360 is an apocalyptic number.

20474360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20474360 is an abundant number, since it is smaller than the sum of its proper divisors (25593040).

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

20474360 is a wasteful number, since it uses less digits than its factorization.

20474360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511870 (or 511866 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 20474360 is about 4524.8602188355. The cubic root of 20474360 is about 273.5710338907.

The spelling of 20474360 in words is "twenty million, four hundred seventy-four thousand, three hundred sixty".