16309474 has 8 divisors (see below), whose sum is σ = 24620508. Its totient is φ = 8102640.

The previous prime is 16309459. The next prime is 16309487. The reversal of 16309474 is 47490361.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13727025 + 2582449 = 3705^2 + 1607^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25657 + ... + 26284.

Almost surely, 2^16309474 is an apocalyptic number.

16309474 is a deficient number, since it is larger than the sum of its proper divisors (8311034).

16309474 is a wasteful number, since it uses less digits than its factorization.

16309474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52100.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 16309474 is about 4038.4989785810. The cubic root of 16309474 is about 253.5984831582.

The spelling of 16309474 in words is "sixteen million, three hundred nine thousand, four hundred seventy-four".