421549242 has 8 divisors (see below), whose sum is σ = 843098496. Its totient is φ = 140516412.

The previous prime is 421549241. The next prime is 421549243. The reversal of 421549242 is 242945124.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (421549241) and next prime (421549243).

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

421549242 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (421549241) 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, 35129098 + ... + 35129109.

It is an arithmetic number, because the mean of its divisors is an integer number (105387312).

Almost surely, 2^421549242 is an apocalyptic number.

421549242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

421549242 is a wasteful number, since it uses less digits than its factorization.

421549242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70258212.

The product of its digits is 23040, while the sum is 33.

The square root of 421549242 is about 20531.6643748138. The cubic root of 421549242 is about 749.8069085141.

The spelling of 421549242 in words is "four hundred twenty-one million, five hundred forty-nine thousand, two hundred forty-two".