42210646 has 8 divisors (see below), whose sum is σ = 64079064. Its totient is φ = 20850960.

The previous prime is 42210613. The next prime is 42210661. The reversal of 42210646 is 64601224.

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

It is a self number, because there is not a number n which added to its sum of digits gives 42210646.

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, 126975 + ... + 127306.

It is an arithmetic number, because the mean of its divisors is an integer number (8009883).

Almost surely, 2^42210646 is an apocalyptic number.

42210646 is a deficient number, since it is larger than the sum of its proper divisors (21868418).

42210646 is a wasteful number, since it uses less digits than its factorization.

42210646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254366.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 42210646 is about 6496.9720639695. The cubic root of 42210646 is about 348.1828156015.

The spelling of 42210646 in words is "forty-two million, two hundred ten thousand, six hundred forty-six".