905170252 has 48 divisors (see below), whose sum is σ = 1849236480. Its totient is φ = 379634112.

The previous prime is 905170247. The next prime is 905170297. The reversal of 905170252 is 252071509.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1078449 + ... + 1079287.

It is an arithmetic number, because the mean of its divisors is an integer number (38525760).

Almost surely, 2^905170252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 905170252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (924618240).

905170252 is an abundant number, since it is smaller than the sum of its proper divisors (944066228).

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

905170252 is a wasteful number, since it uses less digits than its factorization.

905170252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630 (or 1628 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 905170252 is about 30086.0474638993. The cubic root of 905170252 is about 967.3346790239.

The spelling of 905170252 in words is "nine hundred five million, one hundred seventy thousand, two hundred fifty-two".