1392725234 has 8 divisors (see below), whose sum is σ = 2104117680. Its totient is φ = 691352676.

The previous prime is 1392725167. The next prime is 1392725239. The reversal of 1392725234 is 4325272931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1392725239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2504624 + ... + 2505179.

It is an arithmetic number, because the mean of its divisors is an integer number (263014710).

Almost surely, 2^1392725234 is an apocalyptic number.

1392725234 is a deficient number, since it is larger than the sum of its proper divisors (711392446).

1392725234 is a wasteful number, since it uses less digits than its factorization.

1392725234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5009944.

The product of its digits is 90720, while the sum is 38.

The square root of 1392725234 is about 37319.2341025375. The cubic root of 1392725234 is about 1116.7479094179.

The spelling of 1392725234 in words is "one billion, three hundred ninety-two million, seven hundred twenty-five thousand, two hundred thirty-four".