1245628726 has 12 divisors (see below), whose sum is σ = 1984817628. Its totient is φ = 586177952.

The previous prime is 1245628679. The next prime is 1245628739. The reversal of 1245628726 is 6278265421.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1076956 + ... + 1078111.

It is an arithmetic number, because the mean of its divisors is an integer number (165401469).

Almost surely, 2^1245628726 is an apocalyptic number.

1245628726 is a deficient number, since it is larger than the sum of its proper divisors (739188902).

1245628726 is a wasteful number, since it uses less digits than its factorization.

1245628726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2155103 (or 2155086 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The square root of 1245628726 is about 35293.4657691760. The cubic root of 1245628726 is about 1075.9601952034.

The spelling of 1245628726 in words is "one billion, two hundred forty-five million, six hundred twenty-eight thousand, seven hundred twenty-six".