1002401266 has 8 divisors (see below), whose sum is σ = 1503884844. Its totient is φ = 501106320.

The previous prime is 1002401261. The next prime is 1002401291. The reversal of 1002401266 is 6621042001.

It can be written as a sum of positive squares in 2 ways, for example, as 954501025 + 47900241 = 30895^2 + 6921^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×1002401266³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1002401261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33025 + ... + 55636.

Almost surely, 2^1002401266 is an apocalyptic number.

1002401266 is a deficient number, since it is larger than the sum of its proper divisors (501483578).

1002401266 is an equidigital number, since it uses as much as digits as its factorization.

1002401266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94316.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1002401266 is about 31660.7211857216. The cubic root of 1002401266 is about 1000.7997821779.

Adding to 1002401266 its reverse (6621042001), we get a palindrome (7623443267).

The spelling of 1002401266 in words is "one billion, two million, four hundred one thousand, two hundred sixty-six".