6140722440 has 32 divisors (see below), whose sum is σ = 18422167680. Its totient is φ = 1637525952.

The previous prime is 6140722417. The next prime is 6140722447. The reversal of 6140722440 is 442270416.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 6140722398 and 6140722407.

It is not an unprimeable number, because it can be changed into a prime (6140722447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25586224 + ... + 25586463.

It is an arithmetic number, because the mean of its divisors is an integer number (575692740).

Almost surely, 2^6140722440 is an apocalyptic number.

6140722440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6140722440 is an abundant number, since it is smaller than the sum of its proper divisors (12281445240).

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

6140722440 is a wasteful number, since it uses less digits than its factorization.

6140722440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51172701 (or 51172697 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 6140722440 is about 78362.7618196296. The cubic root of 6140722440 is about 1831.2170470294.

Adding to 6140722440 its reverse (442270416), we get a palindrome (6582992856).

The spelling of 6140722440 in words is "six billion, one hundred forty million, seven hundred twenty-two thousand, four hundred forty".