426645450 has 216 divisors, whose sum is σ = 1455442560. Its totient is φ = 88603200.

The previous prime is 426645431. The next prime is 426645463. The reversal of 426645450 is 54546624.

426645450 is a `hidden beast` number, since 4 + 2 + 6 + 645 + 4 + 5 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 241671 + ... + 243429.

It is an arithmetic number, because the mean of its divisors is an integer number (6738160).

Almost surely, 2^426645450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426645450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (727721280).

426645450 is an abundant number, since it is smaller than the sum of its proper divisors (1028797110).

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

426645450 is a wasteful number, since it uses less digits than its factorization.

426645450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802 (or 1787 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The square root of 426645450 is about 20655.3975996590. The cubic root of 426645450 is about 752.8163443681.

The spelling of 426645450 in words is "four hundred twenty-six million, six hundred forty-five thousand, four hundred fifty".