16438674 has 16 divisors (see below), whose sum is σ = 37574208. Its totient is φ = 4696752.

The previous prime is 16438661. The next prime is 16438703. The reversal of 16438674 is 47683461.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195657 + ... + 195740.

It is an arithmetic number, because the mean of its divisors is an integer number (2348388).

Almost surely, 2^16438674 is an apocalyptic number.

16438674 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16438674 is an abundant number, since it is smaller than the sum of its proper divisors (21135534).

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

16438674 is a wasteful number, since it uses less digits than its factorization.

16438674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391409.

The product of its digits is 96768, while the sum is 39.

The square root of 16438674 is about 4054.4634663541. The cubic root of 16438674 is about 254.2663727541.

The spelling of 16438674 in words is "sixteen million, four hundred thirty-eight thousand, six hundred seventy-four".