20195412 has 12 divisors (see below), whose sum is σ = 47122656. Its totient is φ = 6731800.

The previous prime is 20195401. The next prime is 20195429. The reversal of 20195412 is 21459102.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 841464 + ... + 841487.

It is an arithmetic number, because the mean of its divisors is an integer number (3926888).

Almost surely, 2^20195412 is an apocalyptic number.

It is an amenable number.

20195412 is an abundant number, since it is smaller than the sum of its proper divisors (26927244).

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

20195412 is a wasteful number, since it uses less digits than its factorization.

20195412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1682958 (or 1682956 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 20195412 is about 4493.9305735625. The cubic root of 20195412 is about 272.3229475809.

The spelling of 20195412 in words is "twenty million, one hundred ninety-five thousand, four hundred twelve".