2651464240 has 40 divisors (see below), whose sum is σ = 6221231280. Its totient is φ = 1050852096.

The previous prime is 2651464223. The next prime is 2651464243. The reversal of 2651464240 is 424641562.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 2651464196 and 2651464205.

It is not an unprimeable number, because it can be changed into a prime (2651464243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143314 + ... + 160753.

It is an arithmetic number, because the mean of its divisors is an integer number (155530782).

Almost surely, 2^2651464240 is an apocalyptic number.

2651464240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2651464240 is an abundant number, since it is smaller than the sum of its proper divisors (3569767040).

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

2651464240 is a wasteful number, since it uses less digits than its factorization.

2651464240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304189 (or 304183 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 2651464240 is about 51492.3706970266. The cubic root of 2651464240 is about 1384.0823316319.

The spelling of 2651464240 in words is "two billion, six hundred fifty-one million, four hundred sixty-four thousand, two hundred forty".