1383923870 has 32 divisors (see below), whose sum is σ = 2861707968. Its totient is φ = 472025088.

The previous prime is 1383923861. The next prime is 1383923873. The reversal of 1383923870 is 783293831.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1383923873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37709 + ... + 64728.

It is an arithmetic number, because the mean of its divisors is an integer number (89428374).

Almost surely, 2^1383923870 is an apocalyptic number.

1383923870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1383923870 is an abundant number, since it is smaller than the sum of its proper divisors (1477784098).

1383923870 is a wasteful number, since it uses less digits than its factorization.

1383923870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102644.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 1383923870 is about 37201.1272678665. The cubic root of 1383923870 is about 1114.3904971827.

The spelling of 1383923870 in words is "one billion, three hundred eighty-three million, nine hundred twenty-three thousand, eight hundred seventy".