2512356440 has 32 divisors (see below), whose sum is σ = 6166694160. Its totient is φ = 913584000.

The previous prime is 2512356439. The next prime is 2512356461. The reversal of 2512356440 is 446532152.

2512356440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2512356397 and 2512356406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2854511 + ... + 2855390.

Almost surely, 2^2512356440 is an apocalyptic number.

2512356440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2512356440 is an abundant number, since it is smaller than the sum of its proper divisors (3654337720).

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

2512356440 is a wasteful number, since it uses less digits than its factorization.

2512356440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5709923 (or 5709919 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 2512356440 is about 50123.4120945492. The cubic root of 2512356440 is about 1359.4411703484.

Adding to 2512356440 its reverse (446532152), we get a palindrome (2958888592).

The spelling of 2512356440 in words is "two billion, five hundred twelve million, three hundred fifty-six thousand, four hundred forty".