42947402 has 16 divisors (see below), whose sum is σ = 66226560. Its totient is φ = 20880288.

The previous prime is 42947381. The next prime is 42947407. The reversal of 42947402 is 20474924.

42947402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (42947407) 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 in 7 ways as a sum of consecutive naturals, for example, 8558 + ... + 12614.

It is an arithmetic number, because the mean of its divisors is an integer number (4139160).

Almost surely, 2^42947402 is an apocalyptic number.

42947402 is a deficient number, since it is larger than the sum of its proper divisors (23279158).

42947402 is a wasteful number, since it uses less digits than its factorization.

42947402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4205.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 42947402 is about 6553.4267372116. The cubic root of 42947402 is about 350.1969014522.

The spelling of 42947402 in words is "forty-two million, nine hundred forty-seven thousand, four hundred two".