1397052190 has 8 divisors (see below), whose sum is σ = 2514693960. Its totient is φ = 558820872.

The previous prime is 1397052149. The next prime is 1397052193. The reversal of 1397052190 is 912507931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1397052190² = 3903509643167592200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397052193) 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, 69852600 + ... + 69852619.

It is an arithmetic number, because the mean of its divisors is an integer number (314336745).

Almost surely, 2^1397052190 is an apocalyptic number.

1397052190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1397052190 is a deficient number, since it is larger than the sum of its proper divisors (1117641770).

1397052190 is a wasteful number, since it uses less digits than its factorization.

1397052190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139705226.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 1397052190 is about 37377.1613421886. The cubic root of 1397052190 is about 1117.9032278739.

The spelling of 1397052190 in words is "one billion, three hundred ninety-seven million, fifty-two thousand, one hundred ninety".