455212240 has 120 divisors (see below), whose sum is σ = 1238170752. Its totient is φ = 152436480.

The previous prime is 455212223. The next prime is 455212253. The reversal of 455212240 is 42212554.

455212240 = T₂₆₅ + T₂₆₆ + ... + T₁₄₀₀.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4254267 + ... + 4254373.

Almost surely, 2^455212240 is an apocalyptic number.

455212240 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 455212240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (619085376).

455212240 is an abundant number, since it is smaller than the sum of its proper divisors (782958512).

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

455212240 is a wasteful number, since it uses less digits than its factorization.

455212240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 455212240 is about 21335.7034100121. The cubic root of 455212240 is about 769.2567404770.

Adding to 455212240 its reverse (42212554), we get a palindrome (497424794).

The spelling of 455212240 in words is "four hundred fifty-five million, two hundred twelve thousand, two hundred forty".