47730542 has 8 divisors (see below), whose sum is σ = 71799696. Its totient is φ = 23797312.

The previous prime is 47730541. The next prime is 47730547. The reversal of 47730542 is 24503774.

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

It is a super-2 number, since 2×47730542² = 4556409279227528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47730499 and 47730508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47730541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33098 + ... + 34509.

It is an arithmetic number, because the mean of its divisors is an integer number (8974962).

Almost surely, 2^47730542 is an apocalyptic number.

47730542 is a deficient number, since it is larger than the sum of its proper divisors (24069154).

47730542 is a wasteful number, since it uses less digits than its factorization.

47730542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67962.

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 47730542 is about 6908.7294056143. The cubic root of 47730542 is about 362.7427897100.

The spelling of 47730542 in words is "forty-seven million, seven hundred thirty thousand, five hundred forty-two".