2403891840 has 256 divisors, whose sum is σ = 8798699520. Its totient is φ = 546852864.

The previous prime is 2403891821. The next prime is 2403891859. The reversal of 2403891840 is 481983042.

It is an interprime number because it is at equal distance from previous prime (2403891821) and next prime (2403891859).

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, 5147287 + ... + 5147753.

It is an arithmetic number, because the mean of its divisors is an integer number (34369920).

Almost surely, 2^2403891840 is an apocalyptic number.

2403891840 is a gapful number since it is divisible by the number (20) 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 2403891840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4399349760).

2403891840 is an abundant number, since it is smaller than the sum of its proper divisors (6394807680).

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

2403891840 is a wasteful number, since it uses less digits than its factorization.

2403891840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879 (or 867 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 2403891840 is about 49029.4996915123. The cubic root of 2403891840 is about 1339.5892109794.

The spelling of 2403891840 in words is "two billion, four hundred three million, eight hundred ninety-one thousand, eight hundred forty".