406599838 has 4 divisors (see below), whose sum is σ = 609899760. Its totient is φ = 203299918.

The previous prime is 406599827. The next prime is 406599859. The reversal of 406599838 is 838995604.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101649958 + ... + 101649961.

It is an arithmetic number, because the mean of its divisors is an integer number (152474940).

Almost surely, 2^406599838 is an apocalyptic number.

406599838 is a deficient number, since it is larger than the sum of its proper divisors (203299922).

406599838 is a wasteful number, since it uses less digits than its factorization.

406599838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203299921.

The product of its (nonzero) digits is 1866240, while the sum is 52.

The square root of 406599838 is about 20164.3209159148. The cubic root of 406599838 is about 740.8365496862.

The spelling of 406599838 in words is "four hundred six million, five hundred ninety-nine thousand, eight hundred thirty-eight".