2523634240 has 28 divisors (see below), whose sum is σ = 6009404796. Its totient is φ = 1009453568.

The previous prime is 2523634237. The next prime is 2523634271. The reversal of 2523634240 is 424363252.

It can be written as a sum of positive squares in 2 ways, for example, as 693163584 + 1830470656 = 26328^2 + 42784^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3942859 + ... + 3943498.

Almost surely, 2^2523634240 is an apocalyptic number.

2523634240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2523634240 is an abundant number, since it is smaller than the sum of its proper divisors (3485770556).

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

2523634240 is an equidigital number, since it uses as much as digits as its factorization.

2523634240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7886374 (or 7886364 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 31.

The square root of 2523634240 is about 50235.7864475117. The cubic root of 2523634240 is about 1361.4722810255.

Adding to 2523634240 its reverse (424363252), we get a palindrome (2947997492).

The spelling of 2523634240 in words is "two billion, five hundred twenty-three million, six hundred thirty-four thousand, two hundred forty".