42249473 has 8 divisors (see below), whose sum is σ = 48965760. Its totient is φ = 35703360.

The previous prime is 42249461. The next prime is 42249479. The reversal of 42249473 is 37494224.

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

It is not a de Polignac number, because 42249473 - 2¹⁰ = 42248449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42249479) 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, 42008 + ... + 43001.

It is an arithmetic number, because the mean of its divisors is an integer number (6120720).

Almost surely, 2^42249473 is an apocalyptic number.

It is an amenable number.

42249473 is a deficient number, since it is larger than the sum of its proper divisors (6716287).

42249473 is an equidigital number, since it uses as much as digits as its factorization.

42249473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85087.

The product of its digits is 48384, while the sum is 35.

The square root of 42249473 is about 6499.9594614120. The cubic root of 42249473 is about 348.2895402670.

The spelling of 42249473 in words is "forty-two million, two hundred forty-nine thousand, four hundred seventy-three".