421850044 has 36 divisors (see below), whose sum is σ = 927380272. Its totient is φ = 164355840.

The previous prime is 421850017. The next prime is 421850047. The reversal of 421850044 is 440058124.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 421849994 and 421850021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421850047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58869 + ... + 65644.

Almost surely, 2^421850044 is an apocalyptic number.

421850044 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

421850044 is an abundant number, since it is smaller than the sum of its proper divisors (505530228).

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

421850044 is a wasteful number, since it uses less digits than its factorization.

421850044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124546 (or 124533 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 421850044 is about 20538.9883879416. The cubic root of 421850044 is about 749.9852109676.

The spelling of 421850044 in words is "four hundred twenty-one million, eight hundred fifty thousand, forty-four".