1383220770 has 32 divisors (see below), whose sum is σ = 3331081152. Its totient is φ = 367597632.

The previous prime is 1383220757. The next prime is 1383220877. The reversal of 1383220770 is 770223831.

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, 69892 + ... + 87471.

It is an arithmetic number, because the mean of its divisors is an integer number (104096286).

Almost surely, 2^1383220770 is an apocalyptic number.

1383220770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1383220770 is an abundant number, since it is smaller than the sum of its proper divisors (1947860382).

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

1383220770 is a wasteful number, since it uses less digits than its factorization.

1383220770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157666.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 1383220770 is about 37191.6760848446. The cubic root of 1383220770 is about 1114.2017438602.

The spelling of 1383220770 in words is "one billion, three hundred eighty-three million, two hundred twenty thousand, seven hundred seventy".