1974721446 has 24 divisors (see below), whose sum is σ = 4332725280. Its totient is φ = 649907856.

The previous prime is 1974721439. The next prime is 1974721451. The reversal of 1974721446 is 6441274791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 692925 + ... + 695768.

It is an arithmetic number, because the mean of its divisors is an integer number (180530220).

Almost surely, 2^1974721446 is an apocalyptic number.

1974721446 is an abundant number, since it is smaller than the sum of its proper divisors (2358003834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1974721446 is a wasteful number, since it uses less digits than its factorization.

1974721446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388780 (or 1388777 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 1974721446 is about 44437.8379987146. The cubic root of 1974721446 is about 1254.5903640250.

The spelling of 1974721446 in words is "one billion, nine hundred seventy-four million, seven hundred twenty-one thousand, four hundred forty-six".