234640842 has 16 divisors (see below), whose sum is σ = 493980960. Its totient is φ = 74097072.

The previous prime is 234640841. The next prime is 234640843. The reversal of 234640842 is 248046432.

It is an interprime number because it is at equal distance from previous prime (234640841) and next prime (234640843).

It is not an unprimeable number, because it can be changed into a prime (234640841) 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, 1029013 + ... + 1029240.

It is an arithmetic number, because the mean of its divisors is an integer number (30873810).

Almost surely, 2^234640842 is an apocalyptic number.

234640842 is an abundant number, since it is smaller than the sum of its proper divisors (259340118).

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

234640842 is a wasteful number, since it uses less digits than its factorization.

234640842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2058277.

The product of its (nonzero) digits is 36864, while the sum is 33.

The square root of 234640842 is about 15317.9907951402. The cubic root of 234640842 is about 616.7860408135.

The spelling of 234640842 in words is "two hundred thirty-four million, six hundred forty thousand, eight hundred forty-two".