906915390 has 16 divisors (see below), whose sum is σ = 2176597008. Its totient is φ = 241844096.

The previous prime is 906915389. The next prime is 906915397. The reversal of 906915390 is 93519609.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (906915397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15115227 + ... + 15115286.

It is an arithmetic number, because the mean of its divisors is an integer number (136037313).

Almost surely, 2^906915390 is an apocalyptic number.

906915390 is an abundant number, since it is smaller than the sum of its proper divisors (1269681618).

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

906915390 is a wasteful number, since it uses less digits than its factorization.

906915390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30230523.

The product of its (nonzero) digits is 65610, while the sum is 42.

The square root of 906915390 is about 30115.0359455206. The cubic root of 906915390 is about 967.9559429155.

The spelling of 906915390 in words is "nine hundred six million, nine hundred fifteen thousand, three hundred ninety".