2649672460 has 48 divisors (see below), whose sum is σ = 5676967296. Its totient is φ = 1038465792.

The previous prime is 2649672413. The next prime is 2649672469. The reversal of 2649672460 is 642769462.

It is a self number, because there is not a number n which added to its sum of digits gives 2649672460.

It is not an unprimeable number, because it can be changed into a prime (2649672469) 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, 1157437 + ... + 1159723.

It is an arithmetic number, because the mean of its divisors is an integer number (118270152).

Almost surely, 2^2649672460 is an apocalyptic number.

2649672460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2649672460 is an abundant number, since it is smaller than the sum of its proper divisors (3027294836).

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

2649672460 is a wasteful number, since it uses less digits than its factorization.

2649672460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3442 (or 3440 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 46.

The square root of 2649672460 is about 51474.9692569117. The cubic root of 2649672460 is about 1383.7704876022.

The spelling of 2649672460 in words is "two billion, six hundred forty-nine million, six hundred seventy-two thousand, four hundred sixty".