383779402 has 4 divisors (see below), whose sum is σ = 575669106. Its totient is φ = 191889700.

The previous prime is 383779399. The next prime is 383779421. The reversal of 383779402 is 204977383.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 204977383 = 13 ⋅15767491.

It can be written as a sum of positive squares in only one way, i.e., 364848201 + 18931201 = 19101^2 + 4351^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95944849 + ... + 95944852.

Almost surely, 2^383779402 is an apocalyptic number.

383779402 is a deficient number, since it is larger than the sum of its proper divisors (191889704).

383779402 is a wasteful number, since it uses less digits than its factorization.

383779402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191889703.

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 383779402 is about 19590.2884613780. The cubic root of 383779402 is about 726.7090253436.

The spelling of 383779402 in words is "three hundred eighty-three million, seven hundred seventy-nine thousand, four hundred two".