422436744450 has 270 divisors, whose sum is σ = 1366317170361. Its totient is φ = 96490789920.

The previous prime is 422436744449. The next prime is 422436744481. The reversal of 422436744450 is 54447634224.

It can be written as a sum of positive squares in 2 ways, for example, as 413988009561 + 8448734889 = 643419^2 + 91917^2 .

It is a tau number, because it is divible by the number of its divisors (270).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=459585.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 422436744396 and 422436744405.

It is an unprimeable number.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 289537821 + ... + 289539279.

Almost surely, 2^422436744450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422436744450

422436744450 is an abundant number, since it is smaller than the sum of its proper divisors (943880425911).

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

422436744450 is an equidigital number, since it uses as much as digits as its factorization.

422436744450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2956 (or 1476 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 45.

The spelling of 422436744450 in words is "four hundred twenty-two billion, four hundred thirty-six million, seven hundred forty-four thousand, four hundred fifty".