4638404 has 6 divisors (see below), whose sum is σ = 8117214. Its totient is φ = 2319200.

The previous prime is 4638397. The next prime is 4638407. The reversal of 4638404 is 4048364.

It can be written as a sum of positive squares in only one way, i.e., 3810304 + 828100 = 1952^2 + 910^2 .

It is not an unprimeable number, because it can be changed into a prime (4638407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 579797 + ... + 579804.

It is an arithmetic number, because the mean of its divisors is an integer number (1352869).

Almost surely, 2^4638404 is an apocalyptic number.

It is an amenable number.

4638404 is a deficient number, since it is larger than the sum of its proper divisors (3478810).

4638404 is a wasteful number, since it uses less digits than its factorization.

4638404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159605 (or 1159603 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 4638404 is about 2153.6954287921. The cubic root of 4638404 is about 166.7718926621.

The spelling of 4638404 in words is "four million, six hundred thirty-eight thousand, four hundred four".