1869408834 has 16 divisors (see below), whose sum is σ = 3783864672. Its totient is φ = 615628448.

The previous prime is 1869408823. The next prime is 1869408839. The reversal of 1869408834 is 4388049681.

It is not an unprimeable number, because it can be changed into a prime (1869408839) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1876419 + ... + 1877414.

It is an arithmetic number, because the mean of its divisors is an integer number (236491542).

Almost surely, 2^1869408834 is an apocalyptic number.

1869408834 is an abundant number, since it is smaller than the sum of its proper divisors (1914455838).

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

1869408834 is a wasteful number, since it uses less digits than its factorization.

1869408834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3753921.

The product of its (nonzero) digits is 1327104, while the sum is 51.

The square root of 1869408834 is about 43236.6607637546. The cubic root of 1869408834 is about 1231.8791278398.

The spelling of 1869408834 in words is "one billion, eight hundred sixty-nine million, four hundred eight thousand, eight hundred thirty-four".