454242440 has 16 divisors (see below), whose sum is σ = 1022045580. Its totient is φ = 181696960.

The previous prime is 454242421. The next prime is 454242449. The reversal of 454242440 is 44242454.

It can be written as a sum of positive squares in 2 ways, for example, as 451052644 + 3189796 = 21238^2 + 1786^2 .

It is not an unprimeable number, because it can be changed into a prime (454242449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5677991 + ... + 5678070.

Almost surely, 2^454242440 is an apocalyptic number.

454242440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

454242440 is an abundant number, since it is smaller than the sum of its proper divisors (567803140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

454242440 is a wasteful number, since it uses less digits than its factorization.

454242440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11356072 (or 11356068 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 29.

The square root of 454242440 is about 21312.9641298436. The cubic root of 454242440 is about 768.7100682984.

Adding to 454242440 its reverse (44242454), we get a palindrome (498484894).

The spelling of 454242440 in words is "four hundred fifty-four million, two hundred forty-two thousand, four hundred forty".