42867251 has 8 divisors (see below), whose sum is σ = 51873120. Its totient is φ = 34581888.

The previous prime is 42867247. The next prime is 42867257. The reversal of 42867251 is 15276824.

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

It is a cyclic number.

It is not a de Polignac number, because 42867251 - 2² = 42867247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42867257) 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, 179996 + ... + 180233.

It is an arithmetic number, because the mean of its divisors is an integer number (6484140).

Almost surely, 2^42867251 is an apocalyptic number.

42867251 is a deficient number, since it is larger than the sum of its proper divisors (9005869).

42867251 is a wasteful number, since it uses less digits than its factorization.

42867251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360253.

The product of its digits is 26880, while the sum is 35.

The square root of 42867251 is about 6547.3086837265. The cubic root of 42867251 is about 349.9789130153.

The spelling of 42867251 in words is "forty-two million, eight hundred sixty-seven thousand, two hundred fifty-one".