90640346 has 8 divisors (see below), whose sum is σ = 138853440. Its totient is φ = 44355868.

The previous prime is 90640337. The next prime is 90640349. The reversal of 90640346 is 64304609.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (90640349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482036 + ... + 482223.

It is an arithmetic number, because the mean of its divisors is an integer number (17356680).

Almost surely, 2^90640346 is an apocalyptic number.

90640346 is a deficient number, since it is larger than the sum of its proper divisors (48213094).

90640346 is a wasteful number, since it uses less digits than its factorization.

90640346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964308.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 90640346 is about 9520.5223596187. The cubic root of 90640346 is about 449.2007970886.

The spelling of 90640346 in words is "ninety million, six hundred forty thousand, three hundred forty-six".