426225240 has 160 divisors (see below), whose sum is σ = 1637333280. Its totient is φ = 97417728.

The previous prime is 426225229. The next prime is 426225251. The reversal of 426225240 is 42522624.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (426225229) and next prime (426225251).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13284 + ... + 32076.

It is an arithmetic number, because the mean of its divisors is an integer number (10233333).

Almost surely, 2^426225240 is an apocalyptic number.

426225240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426225240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (818666640).

426225240 is an abundant number, since it is smaller than the sum of its proper divisors (1211108040).

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

426225240 is a wasteful number, since it uses less digits than its factorization.

426225240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18823 (or 18810 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 426225240 is about 20645.2231763185. The cubic root of 426225240 is about 752.5691095198.

Adding to 426225240 its reverse (42522624), we get a palindrome (468747864).

The spelling of 426225240 in words is "four hundred twenty-six million, two hundred twenty-five thousand, two hundred forty".