3997274480 has 20 divisors (see below), whose sum is σ = 9293663352. Its totient is φ = 1598909760.

The previous prime is 3997274461. The next prime is 3997274483. The reversal of 3997274480 is 844727993.

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3997274483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24982886 + ... + 24983045.

Almost surely, 2^3997274480 is an apocalyptic number.

It is an amenable number.

3997274480 is an abundant number, since it is smaller than the sum of its proper divisors (5296388872).

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

3997274480 is a wasteful number, since it uses less digits than its factorization.

3997274480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49965944 (or 49965938 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 53.

The square root of 3997274480 is about 63224.0024041503. The cubic root of 3997274480 is about 1587.0404289391.

The spelling of 3997274480 in words is "three billion, nine hundred ninety-seven million, two hundred seventy-four thousand, four hundred eighty".