421274142 has 16 divisors (see below), whose sum is σ = 936164880. Its totient is φ = 140424696.

The previous prime is 421274129. The next prime is 421274149. The reversal of 421274142 is 241472124.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421274149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3900633 + ... + 3900740.

It is an arithmetic number, because the mean of its divisors is an integer number (58510305).

Almost surely, 2^421274142 is an apocalyptic number.

421274142 is an abundant number, since it is smaller than the sum of its proper divisors (514890738).

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

421274142 is a wasteful number, since it uses less digits than its factorization.

421274142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7801384 (or 7801378 counting only the distinct ones).

The product of its digits is 3584, while the sum is 27.

The square root of 421274142 is about 20524.9638732934. The cubic root of 421274142 is about 749.6437668240.

The spelling of 421274142 in words is "four hundred twenty-one million, two hundred seventy-four thousand, one hundred forty-two".