16491426 has 32 divisors (see below), whose sum is σ = 37847040. Its totient is φ = 4692816.

The previous prime is 16491379. The next prime is 16491443. The reversal of 16491426 is 62419461.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12255 + ... + 13533.

It is an arithmetic number, because the mean of its divisors is an integer number (1182720).

Almost surely, 2^16491426 is an apocalyptic number.

16491426 is an abundant number, since it is smaller than the sum of its proper divisors (21355614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16491426 is a wasteful number, since it uses less digits than its factorization.

16491426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1598.

The product of its digits is 10368, while the sum is 33.

The square root of 16491426 is about 4060.9636787344. The cubic root of 16491426 is about 254.5380641253.

The spelling of 16491426 in words is "sixteen million, four hundred ninety-one thousand, four hundred twenty-six".