1890616630 has 24 divisors (see below), whose sum is σ = 3890017008. Its totient is φ = 648086688.

The previous prime is 1890616589. The next prime is 1890616643. The reversal of 1890616630 is 366160981.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 361192 + ... + 366388.

It is an arithmetic number, because the mean of its divisors is an integer number (162084042).

Almost surely, 2^1890616630 is an apocalyptic number.

1890616630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1890616630 is an abundant number, since it is smaller than the sum of its proper divisors (1999400378).

1890616630 is an frugal number, since it uses more digits than its factorization.

1890616630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10408 (or 5211 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 1890616630 is about 43481.2215789759. The cubic root of 1890616630 is about 1236.5200360711.

The spelling of 1890616630 in words is "one billion, eight hundred ninety million, six hundred sixteen thousand, six hundred thirty".