1003245426 has 28 divisors (see below), whose sum is σ = 2256273342. Its totient is φ = 334414656.

The previous prime is 1003245421. The next prime is 1003245449. The reversal of 1003245426 is 6245423001.

It can be written as a sum of positive squares in only one way, i.e., 811395225 + 191850201 = 28485^2 + 13851^2 .

It is a super-5 number, since 5×1003245426⁵ (a number of 46 digits) contains 55555 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1003245426.

It is not an unprimeable number, because it can be changed into a prime (1003245421) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 342591 + ... + 345506.

Almost surely, 2^1003245426 is an apocalyptic number.

1003245426 is an abundant number, since it is smaller than the sum of its proper divisors (1253027916).

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

1003245426 is an frugal number, since it uses more digits than its factorization.

1003245426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688117 (or 688102 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 1003245426 is about 31674.0497252877. The cubic root of 1003245426 is about 1001.0806404622.

Adding to 1003245426 its reverse (6245423001), we get a palindrome (7248668427).

The spelling of 1003245426 in words is "one billion, three million, two hundred forty-five thousand, four hundred twenty-six".