383770842 has 48 divisors (see below), whose sum is σ = 961545312. Its totient is φ = 101213280.

The previous prime is 383770837. The next prime is 383770867. The reversal of 383770842 is 248077383.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 383770794 and 383770803.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46384 + ... + 54027.

It is an arithmetic number, because the mean of its divisors is an integer number (20032194).

Almost surely, 2^383770842 is an apocalyptic number.

383770842 is an abundant number, since it is smaller than the sum of its proper divisors (577774470).

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

383770842 is a wasteful number, since it uses less digits than its factorization.

383770842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100443 (or 100436 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 383770842 is about 19590.0699845611. The cubic root of 383770842 is about 726.7036223478.

The spelling of 383770842 in words is "three hundred eighty-three million, seven hundred seventy thousand, eight hundred forty-two".