42499047 has 8 divisors (see below), whose sum is σ = 58493440. Its totient is φ = 27418680.

The previous prime is 42499043. The next prime is 42499049. The reversal of 42499047 is 74099424.

It is a happy number.

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

It is not a de Polignac number, because 42499047 - 2² = 42499043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42498996 and 42499014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42499043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228397 + ... + 228582.

It is an arithmetic number, because the mean of its divisors is an integer number (7311680).

Almost surely, 2^42499047 is an apocalyptic number.

42499047 is a deficient number, since it is larger than the sum of its proper divisors (15994393).

42499047 is a wasteful number, since it uses less digits than its factorization.

42499047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457013.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 42499047 is about 6519.1293130295. The cubic root of 42499047 is about 348.9739938969.

The spelling of 42499047 in words is "forty-two million, four hundred ninety-nine thousand, forty-seven".