42216490 has 8 divisors (see below), whose sum is σ = 75989700. Its totient is φ = 16886592.

The previous prime is 42216487. The next prime is 42216521. The reversal of 42216490 is 9461224.

It can be written as a sum of positive squares in 2 ways, for example, as 41744521 + 471969 = 6461^2 + 687^2 .

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

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, 2110815 + ... + 2110834.

Almost surely, 2^42216490 is an apocalyptic number.

42216490 is a deficient number, since it is larger than the sum of its proper divisors (33773210).

42216490 is a wasteful number, since it uses less digits than its factorization.

42216490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4221656.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 42216490 is about 6497.4217963743. The cubic root of 42216490 is about 348.1988833211.

The spelling of 42216490 in words is "forty-two million, two hundred sixteen thousand, four hundred ninety".