42251306 has 8 divisors (see below), whose sum is σ = 63444384. Its totient is φ = 21103180.

The previous prime is 42251303. The next prime is 42251311. The reversal of 42251306 is 60315224.

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

It is not an unprimeable number, because it can be changed into a prime (42251303) 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, 8780 + ... + 12711.

It is an arithmetic number, because the mean of its divisors is an integer number (7930548).

Almost surely, 2^42251306 is an apocalyptic number.

42251306 is a deficient number, since it is larger than the sum of its proper divisors (21193078).

42251306 is a wasteful number, since it uses less digits than its factorization.

42251306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22476.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 42251306 is about 6500.1004607621. The cubic root of 42251306 is about 348.2945770596.

The spelling of 42251306 in words is "forty-two million, two hundred fifty-one thousand, three hundred six".