2444747040 has 72 divisors (see below), whose sum is σ = 8342704188. Its totient is φ = 651932160.

The previous prime is 2444747023. The next prime is 2444747087. The reversal of 2444747040 is 407474442.

It can be written as a sum of positive squares in 2 ways, for example, as 2381830416 + 62916624 = 48804^2 + 7932^2 .

It is a tau number, because it is divible by the number of its divisors (72).

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 = 2444746986 and 2444747004.

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, 847431 + ... + 850310.

Almost surely, 2^2444747040 is an apocalyptic number.

2444747040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2444747040 is an abundant number, since it is smaller than the sum of its proper divisors (5897957148).

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

2444747040 is a wasteful number, since it uses less digits than its factorization.

2444747040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697762 (or 1697751 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 36.

The square root of 2444747040 is about 49444.3833008361. The cubic root of 2444747040 is about 1347.1355891838.

The spelling of 2444747040 in words is "two billion, four hundred forty-four million, seven hundred forty-seven thousand, forty".