905197920 has 96 divisors (see below), whose sum is σ = 3110607360. Its totient is φ = 219440640.

The previous prime is 905197897. The next prime is 905197927. The reversal of 905197920 is 29791509.

905197920 is digitally balanced in base 2 and base 6, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (905197927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80440 + ... + 90999.

It is an arithmetic number, because the mean of its divisors is an integer number (32402160).

Almost surely, 2^905197920 is an apocalyptic number.

It is an amenable number.

905197920 is an abundant number, since it is smaller than the sum of its proper divisors (2205409440).

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

905197920 is a wasteful number, since it uses less digits than its factorization.

905197920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171468 (or 171460 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 42.

The square root of 905197920 is about 30086.5072748566. The cubic root of 905197920 is about 967.3445349757.

The spelling of 905197920 in words is "nine hundred five million, one hundred ninety-seven thousand, nine hundred twenty".