1397650494 has 32 divisors (see below), whose sum is σ = 2825256960. Its totient is φ = 460912032.

The previous prime is 1397650489. The next prime is 1397650523. The reversal of 1397650494 is 4940567931.

It is a congruent number.

It is an unprimeable number.

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, 289452 + ... + 294240.

It is an arithmetic number, because the mean of its divisors is an integer number (88289280).

Almost surely, 2^1397650494 is an apocalyptic number.

1397650494 is an abundant number, since it is smaller than the sum of its proper divisors (1427606466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1397650494 is a wasteful number, since it uses less digits than its factorization.

1397650494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5304.

The product of its (nonzero) digits is 816480, while the sum is 48.

The square root of 1397650494 is about 37385.1640895155. The cubic root of 1397650494 is about 1118.0627901580.

The spelling of 1397650494 in words is "one billion, three hundred ninety-seven million, six hundred fifty thousand, four hundred ninety-four".