454012240 has 40 divisors (see below), whose sum is σ = 1151542368. Its totient is φ = 165095040.

The previous prime is 454012219. The next prime is 454012253. The reversal of 454012240 is 42210454.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×454012240² = 412254228139635200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257082 + ... + 258841.

Almost surely, 2^454012240 is an apocalyptic number.

454012240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

454012240 is an abundant number, since it is smaller than the sum of its proper divisors (697530128).

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

454012240 is a wasteful number, since it uses less digits than its factorization.

454012240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515947 (or 515941 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 454012240 is about 21307.5629765583. The cubic root of 454012240 is about 768.5801912818.

Adding to 454012240 its reverse (42210454), we get a palindrome (496222694).

The spelling of 454012240 in words is "four hundred fifty-four million, twelve thousand, two hundred forty".