1990350502 has 12 divisors (see below), whose sum is σ = 3472958700. Its totient is φ = 853007316.

The previous prime is 1990350487. The next prime is 1990350553. The reversal of 1990350502 is 2050530991.

It is a happy number.

It is a super-2 number, since 2×1990350502² = 7922990241623304008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10154752 + ... + 10154947.

It is an arithmetic number, because the mean of its divisors is an integer number (289413225).

Almost surely, 2^1990350502 is an apocalyptic number.

1990350502 is a deficient number, since it is larger than the sum of its proper divisors (1482608198).

1990350502 is a wasteful number, since it uses less digits than its factorization.

1990350502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20309715 (or 20309708 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 1990350502 is about 44613.3444386318. The cubic root of 1990350502 is about 1257.8915147792.

The spelling of 1990350502 in words is "one billion, nine hundred ninety million, three hundred fifty thousand, five hundred two".