421002942 has 16 divisors (see below), whose sum is σ = 854573952. Its totient is φ = 138239640.

The previous prime is 421002941. The next prime is 421002991. The reversal of 421002942 is 249200124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421002941) 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, 523234 + ... + 524037.

It is an arithmetic number, because the mean of its divisors is an integer number (53410872).

Almost surely, 2^421002942 is an apocalyptic number.

421002942 is an abundant number, since it is smaller than the sum of its proper divisors (433571010).

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

421002942 is a wasteful number, since it uses less digits than its factorization.

421002942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047343.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 421002942 is about 20518.3562207112. The cubic root of 421002942 is about 749.4828684041.

The spelling of 421002942 in words is "four hundred twenty-one million, two thousand, nine hundred forty-two".