990458350 has 24 divisors (see below), whose sum is σ = 2105432208. Its totient is φ = 339585600.

The previous prime is 990458347. The next prime is 990458393. The reversal of 990458350 is 53854099.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 990458297 and 990458306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1414591 + ... + 1415290.

It is an arithmetic number, because the mean of its divisors is an integer number (87726342).

Almost surely, 2^990458350 is an apocalyptic number.

990458350 is an abundant number, since it is smaller than the sum of its proper divisors (1114973858).

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

990458350 is a wasteful number, since it uses less digits than its factorization.

990458350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2829900 (or 2829895 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 990458350 is about 31471.5482618825. The cubic root of 990458350 is about 996.8092801347.

The spelling of 990458350 in words is "nine hundred ninety million, four hundred fifty-eight thousand, three hundred fifty".