4441342640 has 80 divisors (see below), whose sum is σ = 11810696448. Its totient is φ = 1521531648.

The previous prime is 4441342639. The next prime is 4441342651. The reversal of 4441342640 is 462431444.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 4441342597 and 4441342606.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 962579 + ... + 967181.

Almost surely, 2^4441342640 is an apocalyptic number.

4441342640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4441342640 is an abundant number, since it is smaller than the sum of its proper divisors (7369353808).

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

4441342640 is a wasteful number, since it uses less digits than its factorization.

4441342640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6346 (or 6340 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

The square root of 4441342640 is about 66643.3990729765. The cubic root of 4441342640 is about 1643.7588084942.

The spelling of 4441342640 in words is "four billion, four hundred forty-one million, three hundred forty-two thousand, six hundred forty".