5440100040 has 48 divisors (see below), whose sum is σ = 17680326300. Its totient is φ = 1450693248.

The previous prime is 5440100027. The next prime is 5440100051. The reversal of 5440100040 is 400010445.

It can be written as a sum of positive squares in 2 ways, for example, as 4523100516 + 916999524 = 67254^2 + 30282^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 5440099986 and 5440100022.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7555335 + ... + 7556054.

Almost surely, 2^5440100040 is an apocalyptic number.

It is an amenable number.

5440100040 is an abundant number, since it is smaller than the sum of its proper divisors (12240226260).

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

5440100040 is a wasteful number, since it uses less digits than its factorization.

5440100040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15111406 (or 15111399 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 5440100040 is about 73757.0338340690. The cubic root of 5440100040 is about 1758.7426496511.

Adding to 5440100040 its reverse (400010445), we get a palindrome (5840110485).

The spelling of 5440100040 in words is "five billion, four hundred forty million, one hundred thousand, forty".