2404133781 has 16 divisors (see below), whose sum is σ = 3685922304. Its totient is φ = 1365360624.

The previous prime is 2404133779. The next prime is 2404133803. The reversal of 2404133781 is 1873314042.

2404133781 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2404133781 - 2¹ = 2404133779 is a prime.

It is a super-2 number, since 2×2404133781² = 11559718473890711922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2404123781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 347751 + ... + 354596.

It is an arithmetic number, because the mean of its divisors is an integer number (230370144).

Almost surely, 2^2404133781 is an apocalyptic number.

2404133781 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2404133781 is a deficient number, since it is larger than the sum of its proper divisors (1281788523).

2404133781 is a wasteful number, since it uses less digits than its factorization.

2404133781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702520.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 2404133781 is about 49031.9669297490. The cubic root of 2404133781 is about 1339.6341506997.

The spelling of 2404133781 in words is "two billion, four hundred four million, one hundred thirty-three thousand, seven hundred eighty-one".