1003426666 has 32 divisors (see below), whose sum is σ = 1754016768. Its totient is φ = 425456640.

The previous prime is 1003426607. The next prime is 1003426769. The reversal of 1003426666 is 6666243001.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30391 + ... + 54133.

It is an arithmetic number, because the mean of its divisors is an integer number (54813024).

Almost surely, 2^1003426666 is an apocalyptic number.

1003426666 is a deficient number, since it is larger than the sum of its proper divisors (750590102).

1003426666 is a wasteful number, since it uses less digits than its factorization.

1003426666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23886.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 1003426666 is about 31676.9106132527. The cubic root of 1003426666 is about 1001.1409198069.

Adding to 1003426666 its reverse (6666243001), we get a palindrome (7669669667).

The spelling of 1003426666 in words is "one billion, three million, four hundred twenty-six thousand, six hundred sixty-six".