1397228741 has 8 divisors (see below), whose sum is σ = 1402167168. Its totient is φ = 1392300000.

The previous prime is 1397228731. The next prime is 1397228747. The reversal of 1397228741 is 1478227931.

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

It is a cyclic number.

It is not a de Polignac number, because 1397228741 - 2¹⁴ = 1397212357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1397228692 and 1397228701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397228747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389486 + ... + 393056.

It is an arithmetic number, because the mean of its divisors is an integer number (175270896).

Almost surely, 2^1397228741 is an apocalyptic number.

It is an amenable number.

1397228741 is a deficient number, since it is larger than the sum of its proper divisors (4938427).

1397228741 is an equidigital number, since it uses as much as digits as its factorization.

1397228741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4843.

The product of its digits is 169344, while the sum is 44.

The square root of 1397228741 is about 37379.5230172885. The cubic root of 1397228741 is about 1117.9503171716.

The spelling of 1397228741 in words is "one billion, three hundred ninety-seven million, two hundred twenty-eight thousand, seven hundred forty-one".