454245440 has 112 divisors (see below), whose sum is σ = 1249582464. Its totient is φ = 155443200.

The previous prime is 454245427. The next prime is 454245443. The reversal of 454245440 is 44542454.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 454245397 and 454245406.

It is not an unprimeable number, because it can be changed into a prime (454245443) 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, 56045 + ... + 63635.

Almost surely, 2^454245440 is an apocalyptic number.

454245440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 454245440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (624791232).

454245440 is an abundant number, since it is smaller than the sum of its proper divisors (795337024).

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

454245440 is a wasteful number, since it uses less digits than its factorization.

454245440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7636 (or 7626 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 32.

The square root of 454245440 is about 21313.0345094264. The cubic root of 454245440 is about 768.7117605850.

Adding to 454245440 its reverse (44542454), we get a palindrome (498787894).

The spelling of 454245440 in words is "four hundred fifty-four million, two hundred forty-five thousand, four hundred forty".