42246638 has 8 divisors (see below), whose sum is σ = 72422832. Its totient is φ = 18105696.

The previous prime is 42246623. The next prime is 42246641. The reversal of 42246638 is 83664224.

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

It is a junction number, because it is equal to n+sod(n) for n = 42246598 and 42246607.

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, 1508795 + ... + 1508822.

It is an arithmetic number, because the mean of its divisors is an integer number (9052854).

Almost surely, 2^42246638 is an apocalyptic number.

42246638 is a deficient number, since it is larger than the sum of its proper divisors (30176194).

42246638 is a wasteful number, since it uses less digits than its factorization.

42246638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3017626.

The product of its digits is 55296, while the sum is 35.

The square root of 42246638 is about 6499.7413794704. The cubic root of 42246638 is about 348.2817498508.

The spelling of 42246638 in words is "forty-two million, two hundred forty-six thousand, six hundred thirty-eight".