834402438 has 16 divisors (see below), whose sum is σ = 1854227760. Its totient is φ = 278134128.

The previous prime is 834402433. The next prime is 834402463. The reversal of 834402438 is 834204438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (834402431) 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, 7725895 + ... + 7726002.

It is an arithmetic number, because the mean of its divisors is an integer number (115889235).

Almost surely, 2^834402438 is an apocalyptic number.

834402438 is an abundant number, since it is smaller than the sum of its proper divisors (1019825322).

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

834402438 is a wasteful number, since it uses less digits than its factorization.

834402438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15451908 (or 15451902 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

The square root of 834402438 is about 28886.0249601775. The cubic root of 834402438 is about 941.4382833132.

The spelling of 834402438 in words is "eight hundred thirty-four million, four hundred two thousand, four hundred thirty-eight".