1990013662 has 16 divisors (see below), whose sum is σ = 3673871712. Its totient is φ = 787258080.

The previous prime is 1990013657. The next prime is 1990013677. The reversal of 1990013662 is 2663100991.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5466889 + ... + 5467252.

It is an arithmetic number, because the mean of its divisors is an integer number (229616982).

Almost surely, 2^1990013662 is an apocalyptic number.

1990013662 is a deficient number, since it is larger than the sum of its proper divisors (1683858050).

1990013662 is a wasteful number, since it uses less digits than its factorization.

1990013662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10934163.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 1990013662 is about 44609.5691752341. The cubic root of 1990013662 is about 1257.8205503800.

The spelling of 1990013662 in words is "one billion, nine hundred ninety million, thirteen thousand, six hundred sixty-two".