1397046518 has 32 divisors (see below), whose sum is σ = 2512041984. Its totient is φ = 570147552.

The previous prime is 1397046517. The next prime is 1397046523. The reversal of 1397046518 is 8156407931.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397046517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4346 + ... + 53037.

It is an arithmetic number, because the mean of its divisors is an integer number (78501312).

Almost surely, 2^1397046518 is an apocalyptic number.

1397046518 is a deficient number, since it is larger than the sum of its proper divisors (1114995466).

1397046518 is a wasteful number, since it uses less digits than its factorization.

1397046518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57476.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 1397046518 is about 37377.0854669007. The cubic root of 1397046518 is about 1117.9017149847.

The spelling of 1397046518 in words is "one billion, three hundred ninety-seven million, forty-six thousand, five hundred eighteen".