39861474 has 16 divisors (see below), whose sum is σ = 82295040. Its totient is φ = 12858480.

The previous prime is 39861439. The next prime is 39861511. The reversal of 39861474 is 47416893.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106969 + ... + 107340.

It is an arithmetic number, because the mean of its divisors is an integer number (5143440).

Almost surely, 2^39861474 is an apocalyptic number.

39861474 is an abundant number, since it is smaller than the sum of its proper divisors (42433566).

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

39861474 is a wasteful number, since it uses less digits than its factorization.

39861474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214345.

The product of its digits is 145152, while the sum is 42.

The square root of 39861474 is about 6313.5943803827. The cubic root of 39861474 is about 341.5999391667.

It can be divided in two parts, 3986 and 1474, that added together give a triangular number (5460 = T₁₀₄).

The spelling of 39861474 in words is "thirty-nine million, eight hundred sixty-one thousand, four hundred seventy-four".