1405234453 has 12 divisors (see below), whose sum is σ = 1644214368. Its totient is φ = 1176464520.

The previous prime is 1405234403. The next prime is 1405234487. The reversal of 1405234453 is 3544325041.

It is a de Polignac number, because none of the positive numbers 2^k-1405234453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1405234403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41343 + ... + 67228.

It is an arithmetic number, because the mean of its divisors is an integer number (137017864).

Almost surely, 2^1405234453 is an apocalyptic number.

It is an amenable number.

1405234453 is a deficient number, since it is larger than the sum of its proper divisors (238979915).

1405234453 is an equidigital number, since it uses as much as digits as its factorization.

1405234453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108664 (or 108621 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 1405234453 is about 37486.4569278026. The cubic root of 1405234453 is about 1120.0814282315.

Adding to 1405234453 its reverse (3544325041), we get a palindrome (4949559494).

The spelling of 1405234453 in words is "one billion, four hundred five million, two hundred thirty-four thousand, four hundred fifty-three".