399026354 has 4 divisors (see below), whose sum is σ = 598539534. Its totient is φ = 199513176.

The previous prime is 399026323. The next prime is 399026357. The reversal of 399026354 is 453620993.

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

It can be written as a sum of positive squares in only one way, i.e., 398920729 + 105625 = 19973^2 + 325^2 .

It is not an unprimeable number, because it can be changed into a prime (399026357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99756587 + ... + 99756590.

Almost surely, 2^399026354 is an apocalyptic number.

399026354 is a deficient number, since it is larger than the sum of its proper divisors (199513180).

399026354 is a wasteful number, since it uses less digits than its factorization.

399026354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199513179.

The product of its (nonzero) digits is 174960, while the sum is 41.

The square root of 399026354 is about 19975.6440196555. The cubic root of 399026354 is about 736.2079902584.

The spelling of 399026354 in words is "three hundred ninety-nine million, twenty-six thousand, three hundred fifty-four".