242400453 has 4 divisors (see below), whose sum is σ = 323200608. Its totient is φ = 161600300.

The previous prime is 242400443. The next prime is 242400463. The reversal of 242400453 is 354004242.

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 an interprime number because it is at equal distance from previous prime (242400443) and next prime (242400463).

It is a cyclic number.

It is not a de Polignac number, because 242400453 - 2²² = 238206149 is a prime.

It is a super-2 number, since 2×242400453² = 117515959229210418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242400443) 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, 40400073 + ... + 40400078.

It is an arithmetic number, because the mean of its divisors is an integer number (80800152).

Almost surely, 2^242400453 is an apocalyptic number.

It is an amenable number.

242400453 is a deficient number, since it is larger than the sum of its proper divisors (80800155).

242400453 is an equidigital number, since it uses as much as digits as its factorization.

242400453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80800154.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 242400453 is about 15569.2149127694. The cubic root of 242400453 is about 623.5115110821.

Adding to 242400453 its reverse (354004242), we get a palindrome (596404695).

The spelling of 242400453 in words is "two hundred forty-two million, four hundred thousand, four hundred fifty-three".