39429074 has 4 divisors (see below), whose sum is σ = 59143614. Its totient is φ = 19714536.

The previous prime is 39429073. The next prime is 39429079. The reversal of 39429074 is 47092493.

39429074 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 37884025 + 1545049 = 6155^2 + 1243^2 .

It is not an unprimeable number, because it can be changed into a prime (39429073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9857267 + ... + 9857270.

Almost surely, 2^39429074 is an apocalyptic number.

39429074 is a deficient number, since it is larger than the sum of its proper divisors (19714540).

39429074 is a wasteful number, since it uses less digits than its factorization.

39429074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19714539.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 39429074 is about 6279.2574401755. The cubic root of 39429074 is about 340.3602697896.

The spelling of 39429074 in words is "thirty-nine million, four hundred twenty-nine thousand, seventy-four".