16861474 has 16 divisors (see below), whose sum is σ = 30427200. Its totient is φ = 6845904.

The previous prime is 16861463. The next prime is 16861483. The reversal of 16861474 is 47416861.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31429 + ... + 31960.

It is an arithmetic number, because the mean of its divisors is an integer number (1901700).

Almost surely, 2^16861474 is an apocalyptic number.

16861474 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16861474 is a deficient number, since it is larger than the sum of its proper divisors (13565726).

16861474 is a wasteful number, since it uses less digits than its factorization.

16861474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63417.

The product of its digits is 32256, while the sum is 37.

The square root of 16861474 is about 4106.2725189641. The cubic root of 16861474 is about 256.4278429139.

It can be divided in two parts, 1686 and 1474, that added together give a triangular number (3160 = T₇₉).

The spelling of 16861474 in words is "sixteen million, eight hundred sixty-one thousand, four hundred seventy-four".