1040002453 has 4 divisors (see below), whose sum is σ = 1188574240. Its totient is φ = 891430668.

The previous prime is 1040002427. The next prime is 1040002459. The reversal of 1040002453 is 3542000401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1040002453 - 2²⁵ = 1006448021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1040002453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040002459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74285883 + ... + 74285896.

It is an arithmetic number, because the mean of its divisors is an integer number (297143560).

Almost surely, 2^1040002453 is an apocalyptic number.

It is an amenable number.

1040002453 is a deficient number, since it is larger than the sum of its proper divisors (148571787).

1040002453 is an equidigital number, since it uses as much as digits as its factorization.

1040002453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148571786.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 1040002453 is about 32249.0690253223. The cubic root of 1040002453 is about 1013.1602003837.

Adding to 1040002453 its reverse (3542000401), we get a palindrome (4582002854).

The spelling of 1040002453 in words is "one billion, forty million, two thousand, four hundred fifty-three".