1394572906 has 16 divisors (see below), whose sum is σ = 2215476000. Its totient is φ = 656531568.

The previous prime is 1394572901. The next prime is 1394572943. The reversal of 1394572906 is 6092754931.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1394572901) 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 7 ways as a sum of consecutive naturals, for example, 106381 + ... + 118768.

It is an arithmetic number, because the mean of its divisors is an integer number (138467250).

Almost surely, 2^1394572906 is an apocalyptic number.

1394572906 is a deficient number, since it is larger than the sum of its proper divisors (820903094).

1394572906 is a wasteful number, since it uses less digits than its factorization.

1394572906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225333.

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 1394572906 is about 37343.9808536798. The cubic root of 1394572906 is about 1117.2415392203.

The spelling of 1394572906 in words is "one billion, three hundred ninety-four million, five hundred seventy-two thousand, nine hundred six".