1671274944 has 280 divisors, whose sum is σ = 5257726848. Its totient is φ = 523860480.

The previous prime is 1671274933. The next prime is 1671274949. The reversal of 1671274944 is 4494721761.

It is a self number, because there is not a number n which added to its sum of digits gives 1671274944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1671274949) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 12757759 + ... + 12757889.

Almost surely, 2^1671274944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1671274944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2628863424).

1671274944 is an abundant number, since it is smaller than the sum of its proper divisors (3586451904).

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

1671274944 is a wasteful number, since it uses less digits than its factorization.

1671274944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285 (or 266 counting only the distinct ones).

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

The square root of 1671274944 is about 40881.2297271009. The cubic root of 1671274944 is about 1186.7228392941.

The spelling of 1671274944 in words is "one billion, six hundred seventy-one million, two hundred seventy-four thousand, nine hundred forty-four".