42215902 has 8 divisors (see below), whose sum is σ = 66077136. Its totient is φ = 20190192.

The previous prime is 42215881. The next prime is 42215903. The reversal of 42215902 is 20951224.

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 (42215903) 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, 458823 + ... + 458914.

It is an arithmetic number, because the mean of its divisors is an integer number (8259642).

Almost surely, 2^42215902 is an apocalyptic number.

42215902 is a deficient number, since it is larger than the sum of its proper divisors (23861234).

42215902 is a wasteful number, since it uses less digits than its factorization.

42215902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917762.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 42215902 is about 6497.3765474998. The cubic root of 42215902 is about 348.1972667183.

The spelling of 42215902 in words is "forty-two million, two hundred fifteen thousand, nine hundred two".