1405136466 has 12 divisors (see below), whose sum is σ = 3044462382. Its totient is φ = 468378816.

The previous prime is 1405136437. The next prime is 1405136483. The reversal of 1405136466 is 6646315041.

It is a happy number.

1405136466 is a `hidden beast` number, since 1 + 4 + 0 + 5 + 1 + 3 + 646 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 842450625 + 562685841 = 29025^2 + 23721^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1405136466.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39031551 + ... + 39031586.

Almost surely, 2^1405136466 is an apocalyptic number.

1405136466 is an abundant number, since it is smaller than the sum of its proper divisors (1639325916).

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

1405136466 is a wasteful number, since it uses less digits than its factorization.

1405136466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78063145 (or 78063142 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 1405136466 is about 37485.1499396761. The cubic root of 1405136466 is about 1120.0553931999.

The spelling of 1405136466 in words is "one billion, four hundred five million, one hundred thirty-six thousand, four hundred sixty-six".