2540212326 has 40 divisors (see below), whose sum is σ = 5713695504. Its totient is φ = 843503760.

The previous prime is 2540212313. The next prime is 2540212361. The reversal of 2540212326 is 6232120452.

It is a happy number.

2540212326 is a `hidden beast` number, since 25 + 402 + 1 + 232 + 6 = 666.

It is a super-2 number, since 2×2540212326² = 12905357322324660552, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 2540212326.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12796 + ... + 72416.

Almost surely, 2^2540212326 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2540212326, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2856847752).

2540212326 is an abundant number, since it is smaller than the sum of its proper divisors (3173483178).

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

2540212326 is a wasteful number, since it uses less digits than its factorization.

2540212326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59898 (or 59889 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2540212326 is about 50400.5191044695. The cubic root of 2540212326 is about 1364.4470070108.

Adding to 2540212326 its reverse (6232120452), we get a palindrome (8772332778).

The spelling of 2540212326 in words is "two billion, five hundred forty million, two hundred twelve thousand, three hundred twenty-six".