90610320 has 40 divisors (see below), whose sum is σ = 280892736. Its totient is φ = 24162688.

The previous prime is 90610249. The next prime is 90610339. The reversal of 90610320 is 2301609.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188532 + ... + 189011.

Almost surely, 2^90610320 is an apocalyptic number.

It is an amenable number.

90610320 is an abundant number, since it is smaller than the sum of its proper divisors (190282416).

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

90610320 is a wasteful number, since it uses less digits than its factorization.

90610320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377559 (or 377553 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 90610320 is about 9518.9453197295. The cubic root of 90610320 is about 449.1511900672.

Adding to 90610320 its reverse (2301609), we get a palindrome (92911929).

The spelling of 90610320 in words is "ninety million, six hundred ten thousand, three hundred twenty".