424551132 has 72 divisors (see below), whose sum is σ = 1178429616. Its totient is φ = 133187328.

The previous prime is 424551121. The next prime is 424551139. The reversal of 424551132 is 231155424.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 424551096 and 424551105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424551139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3678 + ... + 29370.

It is an arithmetic number, because the mean of its divisors is an integer number (16367078).

Almost surely, 2^424551132 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 424551132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (589214808).

424551132 is an abundant number, since it is smaller than the sum of its proper divisors (753878484).

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

424551132 is a wasteful number, since it uses less digits than its factorization.

424551132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25729 (or 25715 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 424551132 is about 20604.6386039649. The cubic root of 424551132 is about 751.5825145152.

The spelling of 424551132 in words is "four hundred twenty-four million, five hundred fifty-one thousand, one hundred thirty-two".