2440272731 has 16 divisors (see below), whose sum is σ = 2675016288. Its totient is φ = 2212953120.

The previous prime is 2440272713. The next prime is 2440272739. The reversal of 2440272731 is 1372720442.

It is a de Polignac number, because none of the positive numbers 2^k-2440272731 is a prime.

It is a super-2 number, since 2×2440272731² = 11909862003324396722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2440272739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2950340 + ... + 2951166.

It is an arithmetic number, because the mean of its divisors is an integer number (167188518).

Almost surely, 2^2440272731 is an apocalyptic number.

2440272731 is a deficient number, since it is larger than the sum of its proper divisors (234743557).

2440272731 is an frugal number, since it uses more digits than its factorization.

2440272731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023 (or 901 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 2440272731 is about 49399.1167026294. The cubic root of 2440272731 is about 1346.3132571036.

The spelling of 2440272731 in words is "two billion, four hundred forty million, two hundred seventy-two thousand, seven hundred thirty-one".