1397538298 has 16 divisors (see below), whose sum is σ = 2289361536. Its totient is φ = 635932080.

The previous prime is 1397538287. The next prime is 1397538319. The reversal of 1397538298 is 8928357931.

It is a super-2 number, since 2×1397538298² = 3906226588753473608, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376686 + ... + 380377.

It is an arithmetic number, because the mean of its divisors is an integer number (143085096).

Almost surely, 2^1397538298 is an apocalyptic number.

1397538298 is a deficient number, since it is larger than the sum of its proper divisors (891823238).

1397538298 is a wasteful number, since it uses less digits than its factorization.

1397538298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757149.

The product of its digits is 3265920, while the sum is 55.

The square root of 1397538298 is about 37383.6635176383. The cubic root of 1397538298 is about 1118.0328719655.

The spelling of 1397538298 in words is "one billion, three hundred ninety-seven million, five hundred thirty-eight thousand, two hundred ninety-eight".