39403142 has 4 divisors (see below), whose sum is σ = 59104716. Its totient is φ = 19701570.

The previous prime is 39403123. The next prime is 39403153. The reversal of 39403142 is 24130493.

39403142 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, and also an emirpimes, since its reverse is a distinct semiprime: 24130493 = 31 ⋅778403.

It is a congruent number.

It is an unprimeable number.

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, 9850784 + ... + 9850787.

It is an arithmetic number, because the mean of its divisors is an integer number (14776179).

Almost surely, 2^39403142 is an apocalyptic number.

39403142 is a deficient number, since it is larger than the sum of its proper divisors (19701574).

39403142 is a wasteful number, since it uses less digits than its factorization.

39403142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19701573.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 39403142 is about 6277.1922067115. The cubic root of 39403142 is about 340.2856365533.

The spelling of 39403142 in words is "thirty-nine million, four hundred three thousand, one hundred forty-two".