383804690 has 32 divisors (see below), whose sum is σ = 712164096. Its totient is φ = 148832640.

The previous prime is 383804671. The next prime is 383804711. The reversal of 383804690 is 96408383.

It is a super-2 number, since 2×383804690² = 294612080131992200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (41).

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, 63959 + ... + 69701.

It is an arithmetic number, because the mean of its divisors is an integer number (22255128).

Almost surely, 2^383804690 is an apocalyptic number.

383804690 is a deficient number, since it is larger than the sum of its proper divisors (328359406).

383804690 is a wasteful number, since it uses less digits than its factorization.

383804690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5954.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 383804690 is about 19590.9338725850. The cubic root of 383804690 is about 726.7249864349.

The spelling of 383804690 in words is "three hundred eighty-three million, eight hundred four thousand, six hundred ninety".