1392097694 has 32 divisors (see below), whose sum is σ = 2314902240. Its totient is φ = 623693952.

The previous prime is 1392097691. The next prime is 1392097709. The reversal of 1392097694 is 4967902931.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1392097691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 488237 + ... + 491079.

It is an arithmetic number, because the mean of its divisors is an integer number (72340695).

Almost surely, 2^1392097694 is an apocalyptic number.

1392097694 is a deficient number, since it is larger than the sum of its proper divisors (922804546).

1392097694 is a wasteful number, since it uses less digits than its factorization.

1392097694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3404.

The product of its (nonzero) digits is 734832, while the sum is 50.

The square root of 1392097694 is about 37310.8254264094. The cubic root of 1392097694 is about 1116.5801545611.

The spelling of 1392097694 in words is "one billion, three hundred ninety-two million, ninety-seven thousand, six hundred ninety-four".