1405433404452 has 48 divisors (see below), whose sum is σ = 4088533542912. Its totient is φ = 365047637280.

The previous prime is 1405433404399. The next prime is 1405433404457. The reversal of 1405433404452 is 2544043345041.

It is a self number, because there is not a number n which added to its sum of digits gives 1405433404452.

It is not an unprimeable number, because it can be changed into a prime (1405433404457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 760514988 + ... + 760516835.

It is an arithmetic number, because the mean of its divisors is an integer number (85177782144).

Almost surely, 2^{1405433404452} is an apocalyptic number.

1405433404452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1405433404452 is an abundant number, since it is smaller than the sum of its proper divisors (2683100138460).

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

1405433404452 is a wasteful number, since it uses less digits than its factorization.

1405433404452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521031848 (or 1521031846 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 39.

Adding to 1405433404452 its reverse (2544043345041), we get a palindrome (3949476749493).

The spelling of 1405433404452 in words is "one trillion, four hundred five billion, four hundred thirty-three million, four hundred four thousand, four hundred fifty-two".