1253406466 has 16 divisors (see below), whose sum is σ = 2026806264. Its totient is φ = 577903104.

The previous prime is 1253406463. The next prime is 1253406499. The reversal of 1253406466 is 6646043521.

It can be written as a sum of positive squares in 4 ways, for example, as 774453241 + 478953225 = 27829^2 + 21885^2 .

It is not an unprimeable number, because it can be changed into a prime (1253406463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1746 + ... + 50098.

Almost surely, 2^1253406466 is an apocalyptic number.

1253406466 is a deficient number, since it is larger than the sum of its proper divisors (773399798).

1253406466 is a wasteful number, since it uses less digits than its factorization.

1253406466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49365.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 1253406466 is about 35403.4809870442. The cubic root of 1253406466 is about 1078.1949919369.

Adding to 1253406466 its reverse (6646043521), we get a palindrome (7899449987).

The spelling of 1253406466 in words is "one billion, two hundred fifty-three million, four hundred six thousand, four hundred sixty-six".