421650042 has 16 divisors (see below), whose sum is σ = 919963872. Its totient is φ = 127772720.

The previous prime is 421650037. The next prime is 421650067. The reversal of 421650042 is 240056124.

It is a junction number, because it is equal to n+sod(n) for n = 421649994 and 421650021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3194253 + ... + 3194384.

It is an arithmetic number, because the mean of its divisors is an integer number (57497742).

Almost surely, 2^421650042 is an apocalyptic number.

421650042 is an abundant number, since it is smaller than the sum of its proper divisors (498313830).

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

421650042 is a wasteful number, since it uses less digits than its factorization.

421650042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6388653.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 421650042 is about 20534.1189730653. The cubic root of 421650042 is about 749.8666678537.

The spelling of 421650042 in words is "four hundred twenty-one million, six hundred fifty thousand, forty-two".