421949850 has 96 divisors (see below), whose sum is σ = 1228361856. Its totient is φ = 93830400.

The previous prime is 421949807. The next prime is 421949851. The reversal of 421949850 is 58949124.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (421949851) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33420 + ... + 44280.

It is an arithmetic number, because the mean of its divisors is an integer number (12795436).

Almost surely, 2^421949850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421949850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (614180928).

421949850 is an abundant number, since it is smaller than the sum of its proper divisors (806412006).

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

421949850 is a wasteful number, since it uses less digits than its factorization.

421949850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10920 (or 10915 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 421949850 is about 20541.4179160057. The cubic root of 421949850 is about 750.0443529326.

The spelling of 421949850 in words is "four hundred twenty-one million, nine hundred forty-nine thousand, eight hundred fifty".