16474481 has 4 divisors (see below), whose sum is σ = 16579572. Its totient is φ = 16369392.

The previous prime is 16474477. The next prime is 16474499. The reversal of 16474481 is 18447461.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6330256 + 10144225 = 2516^2 + 3185^2 .

It is a cyclic number.

It is not a de Polignac number, because 16474481 - 2² = 16474477 is a prime.

It is a super-2 number, since 2×16474481² = 542817048438722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16474441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52310 + ... + 52623.

It is an arithmetic number, because the mean of its divisors is an integer number (4144893).

Almost surely, 2^16474481 is an apocalyptic number.

It is an amenable number.

16474481 is a deficient number, since it is larger than the sum of its proper divisors (105091).

16474481 is a wasteful number, since it uses less digits than its factorization.

16474481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105090.

The product of its digits is 21504, while the sum is 35.

The square root of 16474481 is about 4058.8768150807. The cubic root of 16474481 is about 254.4508546545.

The spelling of 16474481 in words is "sixteen million, four hundred seventy-four thousand, four hundred eighty-one".