1390923230 has 32 divisors (see below), whose sum is σ = 2633925600. Its totient is φ = 528072832.

The previous prime is 1390923223. The next prime is 1390923241. The reversal of 1390923230 is 323290931.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23537 + ... + 57756.

It is an arithmetic number, because the mean of its divisors is an integer number (82310175).

Almost surely, 2^1390923230 is an apocalyptic number.

1390923230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1390923230 is a deficient number, since it is larger than the sum of its proper divisors (1243002370).

1390923230 is a wasteful number, since it uses less digits than its factorization.

1390923230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81388.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 1390923230 is about 37295.0831880021. The cubic root of 1390923230 is about 1116.2660597092.

The spelling of 1390923230 in words is "one billion, three hundred ninety million, nine hundred twenty-three thousand, two hundred thirty".