2645822740 has 24 divisors (see below), whose sum is σ = 6061339872. Its totient is φ = 962117280.

The previous prime is 2645822737. The next prime is 2645822741. The reversal of 2645822740 is 472285462.

It is a super-2 number, since 2×2645822740² = 14000755943002215200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2645822693 and 2645822702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2645822741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6013014 + ... + 6013453.

It is an arithmetic number, because the mean of its divisors is an integer number (252555828).

Almost surely, 2^2645822740 is an apocalyptic number.

2645822740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2645822740 is an abundant number, since it is smaller than the sum of its proper divisors (3415517132).

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

2645822740 is a wasteful number, since it uses less digits than its factorization.

2645822740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12026487 (or 12026485 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 40.

The square root of 2645822740 is about 51437.5615673994. The cubic root of 2645822740 is about 1383.1000008380.

The spelling of 2645822740 in words is "two billion, six hundred forty-five million, eight hundred twenty-two thousand, seven hundred forty".