47490142 has 16 divisors (see below), whose sum is σ = 81607680. Its totient is φ = 20303928.

The previous prime is 47490119. The next prime is 47490143. The reversal of 47490142 is 24109474.

47490142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47490143) 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, 2283 + ... + 10009.

It is an arithmetic number, because the mean of its divisors is an integer number (5100480).

Almost surely, 2^47490142 is an apocalyptic number.

47490142 is a deficient number, since it is larger than the sum of its proper divisors (34117538).

47490142 is a wasteful number, since it uses less digits than its factorization.

47490142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8175.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 47490142 is about 6891.3091644476. The cubic root of 47490142 is about 362.1327667418.

The spelling of 47490142 in words is "forty-seven million, four hundred ninety thousand, one hundred forty-two".