42215776 has 24 divisors (see below), whose sum is σ = 84883680. Its totient is φ = 20658048.

The previous prime is 42215759. The next prime is 42215791. The reversal of 42215776 is 67751224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12531 + ... + 15538.

It is an arithmetic number, because the mean of its divisors is an integer number (3536820).

Almost surely, 2^42215776 is an apocalyptic number.

It is an amenable number.

42215776 is an abundant number, since it is smaller than the sum of its proper divisors (42667904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42215776 is a wasteful number, since it uses less digits than its factorization.

42215776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28126 (or 28118 counting only the distinct ones).

The product of its digits is 23520, while the sum is 34.

The square root of 42215776 is about 6497.3668512714. The cubic root of 42215776 is about 348.1969203014.

The spelling of 42215776 in words is "forty-two million, two hundred fifteen thousand, seven hundred seventy-six".