1845490240 has 56 divisors (see below), whose sum is σ = 4794089472. Its totient is φ = 671086080.

The previous prime is 1845490219. The next prime is 1845490253. The reversal of 1845490240 is 420945481.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1845490240.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258624 + ... + 265663.

Almost surely, 2^1845490240 is an apocalyptic number.

1845490240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1845490240 is an abundant number, since it is smaller than the sum of its proper divisors (2948599232).

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

1845490240 is a wasteful number, since it uses less digits than its factorization.

1845490240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524315 (or 524305 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 1845490240 is about 42959.1694519342. The cubic root of 1845490240 is about 1226.6027035541.

The spelling of 1845490240 in words is "one billion, eight hundred forty-five million, four hundred ninety thousand, two hundred forty".