990702338 has 4 divisors (see below), whose sum is σ = 1486053510. Its totient is φ = 495351168.

The previous prime is 990702337. The next prime is 990702347. The reversal of 990702338 is 833207099.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 627151849 + 363550489 = 25043^2 + 19067^2 .

It is a super-2 number, since 2×990702338² = 1962982245037332488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 990702295 and 990702304.

It is not an unprimeable number, because it can be changed into a prime (990702337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247675583 + ... + 247675586.

Almost surely, 2^990702338 is an apocalyptic number.

990702338 is a deficient number, since it is larger than the sum of its proper divisors (495351172).

990702338 is a wasteful number, since it uses less digits than its factorization.

990702338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495351171.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 990702338 is about 31475.4243498003. The cubic root of 990702338 is about 996.8911242407.

The spelling of 990702338 in words is "nine hundred ninety million, seven hundred two thousand, three hundred thirty-eight".