402345453 has 16 divisors (see below), whose sum is σ = 549559296. Its totient is φ = 261695280.

The previous prime is 402345407. The next prime is 402345457. The reversal of 402345453 is 354543204.

It is not a de Polignac number, because 402345453 - 2⁹ = 402344941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 402345453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402345457) 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, 214108 + ... + 215978.

It is an arithmetic number, because the mean of its divisors is an integer number (34347456).

Almost surely, 2^402345453 is an apocalyptic number.

402345453 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

402345453 is a deficient number, since it is larger than the sum of its proper divisors (147213843).

402345453 is a wasteful number, since it uses less digits than its factorization.

402345453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3584.

The product of its (nonzero) digits is 28800, while the sum is 30.

The square root of 402345453 is about 20058.5506206206. The cubic root of 402345453 is about 738.2436145378.

Adding to 402345453 its reverse (354543204), we get a palindrome (756888657).

The spelling of 402345453 in words is "four hundred two million, three hundred forty-five thousand, four hundred fifty-three".