2344432644 has 144 divisors (see below), whose sum is σ = 6241662336. Its totient is φ = 741312000.

The previous prime is 2344432637. The next prime is 2344432663. The reversal of 2344432644 is 4462344432.

2344432644 is a `hidden beast` number, since 2 + 3 + 4 + 4 + 4 + 3 + 2 + 644 = 666.

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 = 2344432599 and 2344432608.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14932614 + ... + 14932770.

Almost surely, 2^2344432644 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 2344432644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3120831168).

2344432644 is an abundant number, since it is smaller than the sum of its proper divisors (3897229692).

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

2344432644 is a wasteful number, since it uses less digits than its factorization.

2344432644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426 (or 421 counting only the distinct ones).

The product of its digits is 221184, while the sum is 36.

The square root of 2344432644 is about 48419.3416312118. The cubic root of 2344432644 is about 1328.4521620701.

The spelling of 2344432644 in words is "two billion, three hundred forty-four million, four hundred thirty-two thousand, six hundred forty-four".