1245544396 has 24 divisors (see below), whose sum is σ = 2212920864. Its totient is φ = 613307520.

The previous prime is 1245544393. The next prime is 1245544439. The reversal of 1245544396 is 6934455421.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1245544393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214086 + ... + 219826.

It is an arithmetic number, because the mean of its divisors is an integer number (92205036).

Almost surely, 2^1245544396 is an apocalyptic number.

It is an amenable number.

1245544396 is a deficient number, since it is larger than the sum of its proper divisors (967376468).

1245544396 is a wasteful number, since it uses less digits than its factorization.

1245544396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6561 (or 6559 counting only the distinct ones).

The product of its digits is 518400, while the sum is 43.

The square root of 1245544396 is about 35292.2710518890. The cubic root of 1245544396 is about 1075.9359135511.

The spelling of 1245544396 in words is "one billion, two hundred forty-five million, five hundred forty-four thousand, three hundred ninety-six".