16910434 has 4 divisors (see below), whose sum is σ = 25365654. Its totient is φ = 8455216.

The previous prime is 16910429. The next prime is 16910449. The reversal of 16910434 is 43401961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43401961 = 5351 ⋅8111.

It can be written as a sum of positive squares in only one way, i.e., 15233409 + 1677025 = 3903^2 + 1295^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4227607 + ... + 4227610.

Almost surely, 2^16910434 is an apocalyptic number.

16910434 is a deficient number, since it is larger than the sum of its proper divisors (8455220).

16910434 is an equidigital number, since it uses as much as digits as its factorization.

16910434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8455219.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 16910434 is about 4112.2298087534. The cubic root of 16910434 is about 256.6757962308.

The spelling of 16910434 in words is "sixteen million, nine hundred ten thousand, four hundred thirty-four".