1312626450 has 24 divisors (see below), whose sum is σ = 3255313968. Its totient is φ = 350033680.

The previous prime is 1312626433. The next prime is 1312626451. The reversal of 1312626450 is 546262131.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1312626451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4375272 + ... + 4375571.

It is an arithmetic number, because the mean of its divisors is an integer number (135638082).

Almost surely, 2^1312626450 is an apocalyptic number.

1312626450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312626450 is an abundant number, since it is smaller than the sum of its proper divisors (1942687518).

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

1312626450 is a wasteful number, since it uses less digits than its factorization.

1312626450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8750858 (or 8750853 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 1312626450 is about 36230.1869992414. The cubic root of 1312626450 is about 1094.9149451251.

Adding to 1312626450 its reverse (546262131), we get a palindrome (1858888581).

The spelling of 1312626450 in words is "one billion, three hundred twelve million, six hundred twenty-six thousand, four hundred fifty".