2649247040 has 56 divisors (see below), whose sum is σ = 6882030432. Its totient is φ = 963361280.

The previous prime is 2649246959. The next prime is 2649247093. The reversal of 2649247040 is 407429462.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2649246985 and 2649247003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372794 + ... + 379833.

Almost surely, 2^2649247040 is an apocalyptic number.

2649247040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2649247040 is an abundant number, since it is smaller than the sum of its proper divisors (4232783392).

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

2649247040 is a wasteful number, since it uses less digits than its factorization.

2649247040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752655 (or 752645 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 2649247040 is about 51470.8367913326. The cubic root of 2649247040 is about 1383.6964262282.

The spelling of 2649247040 in words is "two billion, six hundred forty-nine million, two hundred forty-seven thousand, forty".