1236426444 has 270 divisors, whose sum is σ = 3845376612. Its totient is φ = 343504800.

The previous prime is 1236426431. The next prime is 1236426461. The reversal of 1236426444 is 4446246321.

1236426444 is a `hidden beast` number, since 1 + 2 + 3 + 6 + 4 + 2 + 644 + 4 = 666.

1236426444 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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 junction number, because it is equal to n+sod(n) for n = 1236426399 and 1236426408.

It is an unprimeable number.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 39884709 + ... + 39884739.

Almost surely, 2^1236426444 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 1236426444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1922688306).

1236426444 is an abundant number, since it is smaller than the sum of its proper divisors (2608950168).

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

1236426444 is a wasteful number, since it uses less digits than its factorization.

1236426444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 66 counting only the distinct ones).

The product of its digits is 110592, while the sum is 36.

The square root of 1236426444 is about 35162.8560273479. The cubic root of 1236426444 is about 1073.3040339811.

The spelling of 1236426444 in words is "one billion, two hundred thirty-six million, four hundred twenty-six thousand, four hundred forty-four".