397130049 has 12 divisors (see below), whose sum is σ = 575289936. Its totient is φ = 263988312.

The previous prime is 397130033. The next prime is 397130053. The reversal of 397130049 is 940031793.

It is not a de Polignac number, because 397130049 - 2⁴ = 397130033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 397129995 and 397130022.

It is not an unprimeable number, because it can be changed into a prime (397130009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60459 + ... + 66704.

It is an arithmetic number, because the mean of its divisors is an integer number (47940828).

Almost surely, 2^397130049 is an apocalyptic number.

It is an amenable number.

397130049 is a deficient number, since it is larger than the sum of its proper divisors (178159887).

397130049 is a wasteful number, since it uses less digits than its factorization.

397130049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127516 (or 127513 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 397130049 is about 19928.1220640581. The cubic root of 397130049 is about 735.0399034285.

The spelling of 397130049 in words is "three hundred ninety-seven million, one hundred thirty thousand, forty-nine".