1481961998 has 16 divisors (see below), whose sum is σ = 2429402544. Its totient is φ = 672404160.

The previous prime is 1481961989. The next prime is 1481962021. The reversal of 1481961998 is 8991691841.

It is a super-2 number, since 2×1481961998² = 4392422727032304008, which contains 22 as substring.

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, 48215 + ... + 72722.

It is an arithmetic number, because the mean of its divisors is an integer number (151837659).

Almost surely, 2^1481961998 is an apocalyptic number.

1481961998 is a deficient number, since it is larger than the sum of its proper divisors (947440546).

1481961998 is a wasteful number, since it uses less digits than its factorization.

1481961998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121507.

The product of its digits is 1119744, while the sum is 56.

The square root of 1481961998 is about 38496.2595325832. The cubic root of 1481961998 is about 1140.1072018814.

The spelling of 1481961998 in words is "one billion, four hundred eighty-one million, nine hundred sixty-one thousand, nine hundred ninety-eight".