42251470 has 8 divisors (see below), whose sum is σ = 76052664. Its totient is φ = 16900584.

The previous prime is 42251453. The next prime is 42251471. The reversal of 42251470 is 7415224.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42251471) 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, 2112564 + ... + 2112583.

It is an arithmetic number, because the mean of its divisors is an integer number (9506583).

Almost surely, 2^42251470 is an apocalyptic number.

42251470 is a deficient number, since it is larger than the sum of its proper divisors (33801194).

42251470 is a wasteful number, since it uses less digits than its factorization.

42251470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4225154.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 42251470 is about 6500.1130759395. The cubic root of 42251470 is about 348.2950276984.

Adding to 42251470 its reverse (7415224), we get a palindrome (49666694).

The spelling of 42251470 in words is "forty-two million, two hundred fifty-one thousand, four hundred seventy".