424191924 has 96 divisors (see below), whose sum is σ = 1188794880. Its totient is φ = 130032000.

The previous prime is 424191923. The next prime is 424191931. The reversal of 424191924 is 429191424.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424191923) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 604774 + ... + 605474.

It is an arithmetic number, because the mean of its divisors is an integer number (12383280).

Almost surely, 2^424191924 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 424191924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (594397440).

424191924 is an abundant number, since it is smaller than the sum of its proper divisors (764602956).

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

424191924 is a wasteful number, since it uses less digits than its factorization.

424191924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158 (or 1150 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 424191924 is about 20595.9200814142. The cubic root of 424191924 is about 751.3704861648.

The spelling of 424191924 in words is "four hundred twenty-four million, one hundred ninety-one thousand, nine hundred twenty-four".