2683754640 has 640 divisors, whose sum is σ = 11454981120. Its totient is φ = 563576832.

The previous prime is 2683754639. The next prime is 2683754641. The reversal of 2683754640 is 464573862.

2683754640 is a `hidden beast` number, since 2 + 68 + 3 + 7 + 546 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (2683754639) and next prime (2683754641).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (2683754641) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 13623022 + ... + 13623218.

It is an arithmetic number, because the mean of its divisors is an integer number (17898408).

Almost surely, 2^2683754640 is an apocalyptic number.

2683754640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2683754640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5727490560).

2683754640 is an abundant number, since it is smaller than the sum of its proper divisors (8771226480).

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

2683754640 is a wasteful number, since it uses less digits than its factorization.

2683754640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The square root of 2683754640 is about 51804.9673293981. The cubic root of 2683754640 is about 1389.6782789745.

The spelling of 2683754640 in words is "two billion, six hundred eighty-three million, seven hundred fifty-four thousand, six hundred forty".