47254642 has 8 divisors (see below), whose sum is σ = 71059932. Its totient is φ = 23568000.

The previous prime is 47254621. The next prime is 47254643. The reversal of 47254642 is 24645274.

It can be written as a sum of positive squares in 2 ways, for example, as 45037521 + 2217121 = 6711^2 + 1489^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 47254598 and 47254607.

It is not an unprimeable number, because it can be changed into a prime (47254643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28659 + ... + 30262.

Almost surely, 2^47254642 is an apocalyptic number.

47254642 is a deficient number, since it is larger than the sum of its proper divisors (23805290).

47254642 is a wasteful number, since it uses less digits than its factorization.

47254642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59324.

The product of its digits is 53760, while the sum is 34.

The square root of 47254642 is about 6874.2011899565. The cubic root of 47254642 is about 361.5331782655.

The spelling of 47254642 in words is "forty-seven million, two hundred fifty-four thousand, six hundred forty-two".