1990097330 has 32 divisors (see below), whose sum is σ = 3872461824. Its totient is φ = 731998656.

The previous prime is 1990097327. The next prime is 1990097339. The reversal of 1990097330 is 337900991.

It is not an unprimeable number, because it can be changed into a prime (1990097339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5087 + ... + 63293.

It is an arithmetic number, because the mean of its divisors is an integer number (121014432).

Almost surely, 2^1990097330 is an apocalyptic number.

1990097330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1990097330 is a deficient number, since it is larger than the sum of its proper divisors (1882364494).

1990097330 is a wasteful number, since it uses less digits than its factorization.

1990097330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58490.

The product of its (nonzero) digits is 45927, while the sum is 41.

The square root of 1990097330 is about 44610.5069462341. The cubic root of 1990097330 is about 1257.8381780404.

The spelling of 1990097330 in words is "one billion, nine hundred ninety million, ninety-seven thousand, three hundred thirty".