1994463574 has 16 divisors (see below), whose sum is σ = 3109543920. Its totient is φ = 958275360.

The previous prime is 1994463563. The next prime is 1994463589. The reversal of 1994463574 is 4753644991.

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, 69249 + ... + 93724.

It is an arithmetic number, because the mean of its divisors is an integer number (194346495).

Almost surely, 2^1994463574 is an apocalyptic number.

1994463574 is a deficient number, since it is larger than the sum of its proper divisors (1115080346).

1994463574 is a wasteful number, since it uses less digits than its factorization.

1994463574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163215.

The product of its digits is 3265920, while the sum is 52.

The square root of 1994463574 is about 44659.4175286691. The cubic root of 1994463574 is about 1258.7573988790.

The spelling of 1994463574 in words is "one billion, nine hundred ninety-four million, four hundred sixty-three thousand, five hundred seventy-four".