472142905 has 24 divisors (see below), whose sum is σ = 615648600. Its totient is φ = 347443200.

The previous prime is 472142897. The next prime is 472142911. The reversal of 472142905 is 509241274.

It can be written as a sum of positive squares in 12 ways, for example, as 60093504 + 412049401 = 7752^2 + 20299^2 .

It is not a de Polignac number, because 472142905 - 2³ = 472142897 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 294105 + ... + 295705.

It is an arithmetic number, because the mean of its divisors is an integer number (25652025).

Almost surely, 2^472142905 is an apocalyptic number.

It is an amenable number.

472142905 is a deficient number, since it is larger than the sum of its proper divisors (143505695).

472142905 is a wasteful number, since it uses less digits than its factorization.

472142905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1981 (or 1968 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 472142905 is about 21728.8496013940. The cubic root of 472142905 is about 778.6778527392.

The spelling of 472142905 in words is "four hundred seventy-two million, one hundred forty-two thousand, nine hundred five".