1421040453 has 32 divisors (see below), whose sum is σ = 2203852800. Its totient is φ = 797670720.

The previous prime is 1421040451. The next prime is 1421040461. The reversal of 1421040453 is 3540401241.

It is not a de Polignac number, because 1421040453 - 2¹ = 1421040451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421040451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 591148 + ... + 593546.

It is an arithmetic number, because the mean of its divisors is an integer number (68870400).

Almost surely, 2^1421040453 is an apocalyptic number.

It is an amenable number.

1421040453 is a deficient number, since it is larger than the sum of its proper divisors (782812347).

1421040453 is a wasteful number, since it uses less digits than its factorization.

1421040453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2897.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1421040453 is about 37696.6902128025. The cubic root of 1421040453 is about 1124.2653186417.

Adding to 1421040453 its reverse (3540401241), we get a palindrome (4961441694).

The spelling of 1421040453 in words is "one billion, four hundred twenty-one million, forty thousand, four hundred fifty-three".