454120040 has 64 divisors (see below), whose sum is σ = 1118050560. Its totient is φ = 164632320.

The previous prime is 454119989. The next prime is 454120049. The reversal of 454120040 is 40021454.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 454119994 and 454120021.

It is not an unprimeable number, because it can be changed into a prime (454120049) 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, 162737 + ... + 165503.

It is an arithmetic number, because the mean of its divisors is an integer number (17469540).

Almost surely, 2^454120040 is an apocalyptic number.

454120040 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 454120040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (559025280).

454120040 is an abundant number, since it is smaller than the sum of its proper divisors (663930520).

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

454120040 is a wasteful number, since it uses less digits than its factorization.

454120040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3162 (or 3158 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 454120040 is about 21310.0924446611. The cubic root of 454120040 is about 768.6410166522.

Adding to 454120040 its reverse (40021454), we get a palindrome (494141494).

The spelling of 454120040 in words is "four hundred fifty-four million, one hundred twenty thousand, forty".