27443023740 has 144 divisors (see below), whose sum is σ = 91645313760. Its totient is φ = 6591767040.

The previous prime is 27443023703. The next prime is 27443023757. The reversal of 27443023740 is 4732034472.

It is a super-3 number, since 3×27443023740³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 27443023695 and 27443023704.

It is a congruent number.

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, 152242 + ... + 279398.

It is an arithmetic number, because the mean of its divisors is an integer number (636425790).

Almost surely, 2^27443023740 is an apocalyptic number.

27443023740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27443023740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45822656880).

27443023740 is an abundant number, since it is smaller than the sum of its proper divisors (64202290020).

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

27443023740 is a wasteful number, since it uses less digits than its factorization.

27443023740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127292 (or 127287 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 36.

The spelling of 27443023740 in words is "twenty-seven billion, four hundred forty-three million, twenty-three thousand, seven hundred forty".