914487840 has 192 divisors, whose sum is σ = 3658072320. Its totient is φ = 209018880.

The previous prime is 914487829. The next prime is 914487853. The reversal of 914487840 is 48784419.

914487840 is a `hidden beast` number, since 91 + 4 + 487 + 84 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15120 + ... + 45360.

It is an arithmetic number, because the mean of its divisors is an integer number (19052460).

Almost surely, 2^914487840 is an apocalyptic number.

914487840 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a pronic number, being equal to 30240×30241.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 914487840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1829036160).

914487840 is an abundant number, since it is smaller than the sum of its proper divisors (2743584480).

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

914487840 is a wasteful number, since it uses less digits than its factorization.

914487840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30272 (or 30258 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 914487840 is about 30240.4999958665. The cubic root of 914487840 is about 970.6425190057.

The spelling of 914487840 in words is "nine hundred fourteen million, four hundred eighty-seven thousand, eight hundred forty".