1840401330 has 32 divisors (see below), whose sum is σ = 4470185664. Its totient is φ = 484860096.

The previous prime is 1840401307. The next prime is 1840401371. The reversal of 1840401330 is 331040481.

It is a self number, because there is not a number n which added to its sum of digits gives 1840401330.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367069 + ... + 372048.

It is an arithmetic number, because the mean of its divisors is an integer number (139693302).

Almost surely, 2^1840401330 is an apocalyptic number.

1840401330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1840401330 is an abundant number, since it is smaller than the sum of its proper divisors (2629784334).

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

1840401330 is a wasteful number, since it uses less digits than its factorization.

1840401330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739210.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1840401330 is about 42899.8989509299. The cubic root of 1840401330 is about 1225.4742198402.

The spelling of 1840401330 in words is "one billion, eight hundred forty million, four hundred one thousand, three hundred thirty".