1392227664 has 40 divisors (see below), whose sum is σ = 3599025600. Its totient is φ = 463761408.

The previous prime is 1392227663. The next prime is 1392227671. The reversal of 1392227664 is 4667222931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1392227663) 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 7 ways as a sum of consecutive naturals, for example, 68112 + ... + 86160.

It is an arithmetic number, because the mean of its divisors is an integer number (89975640).

Almost surely, 2^1392227664 is an apocalyptic number.

It is an amenable number.

1392227664 is an abundant number, since it is smaller than the sum of its proper divisors (2206797936).

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

1392227664 is a wasteful number, since it uses less digits than its factorization.

1392227664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19667 (or 19661 counting only the distinct ones).

The product of its digits is 217728, while the sum is 42.

The square root of 1392227664 is about 37312.5671054673. The cubic root of 1392227664 is about 1116.6149024592.

The spelling of 1392227664 in words is "one billion, three hundred ninety-two million, two hundred twenty-seven thousand, six hundred sixty-four".