1994151622 has 16 divisors (see below), whose sum is σ = 3027974400. Its totient is φ = 984850240.

The previous prime is 1994151613. The next prime is 1994151637. The reversal of 1994151622 is 2261514991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183579 + ... + 194137.

It is an arithmetic number, because the mean of its divisors is an integer number (189248400).

Almost surely, 2^1994151622 is an apocalyptic number.

1994151622 is a deficient number, since it is larger than the sum of its proper divisors (1033822778).

1994151622 is a wasteful number, since it uses less digits than its factorization.

1994151622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11711.

The product of its digits is 38880, while the sum is 40.

The square root of 1994151622 is about 44655.9248252681. The cubic root of 1994151622 is about 1258.6917684730.

The spelling of 1994151622 in words is "one billion, nine hundred ninety-four million, one hundred fifty-one thousand, six hundred twenty-two".