1397351452 has 24 divisors (see below), whose sum is σ = 2798526080. Its totient is φ = 598045680.

The previous prime is 1397351441. The next prime is 1397351471. The reversal of 1397351452 is 2541537931.

It is a super-3 number, since 3×1397351452³ (a number of 28 digits) contains 333 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, 13074 + ... + 54457.

Almost surely, 2^1397351452 is an apocalyptic number.

It is an amenable number.

1397351452 is an abundant number, since it is smaller than the sum of its proper divisors (1401174628).

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

1397351452 is a wasteful number, since it uses less digits than its factorization.

1397351452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68281 (or 68279 counting only the distinct ones).

The product of its digits is 113400, while the sum is 40.

The square root of 1397351452 is about 37381.1644013399. The cubic root of 1397351452 is about 1117.9830440453.

The spelling of 1397351452 in words is "one billion, three hundred ninety-seven million, three hundred fifty-one thousand, four hundred fifty-two".