47409142 has 32 divisors (see below), whose sum is σ = 84499200. Its totient is φ = 19706400.

The previous prime is 47409127. The next prime is 47409179. The reversal of 47409142 is 24190474.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10167 + ... + 14077.

It is an arithmetic number, because the mean of its divisors is an integer number (2640600).

Almost surely, 2^47409142 is an apocalyptic number.

47409142 is a deficient number, since it is larger than the sum of its proper divisors (37090058).

47409142 is a wasteful number, since it uses less digits than its factorization.

47409142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3972.

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

The square root of 47409142 is about 6885.4296888430. The cubic root of 47409142 is about 361.9267629586.

The spelling of 47409142 in words is "forty-seven million, four hundred nine thousand, one hundred forty-two".