1398271452 has 24 divisors (see below), whose sum is σ = 3301944576. Its totient is φ = 460474608.

The previous prime is 1398271423. The next prime is 1398271487. The reversal of 1398271452 is 2541728931.

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, 700948 + ... + 702939.

It is an arithmetic number, because the mean of its divisors is an integer number (137581024).

Almost surely, 2^1398271452 is an apocalyptic number.

1398271452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1398271452 is an abundant number, since it is smaller than the sum of its proper divisors (1903673124).

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

1398271452 is a wasteful number, since it uses less digits than its factorization.

1398271452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403977 (or 1403975 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 1398271452 is about 37393.4680392178. The cubic root of 1398271452 is about 1118.2283459112.

The spelling of 1398271452 in words is "one billion, three hundred ninety-eight million, two hundred seventy-one thousand, four hundred fifty-two".