234371440 has 20 divisors (see below), whose sum is σ = 544913784. Its totient is φ = 93748544.

The previous prime is 234371437. The next prime is 234371447. The reversal of 234371440 is 44173432.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 234371399 and 234371408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234371447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1464742 + ... + 1464901.

Almost surely, 2^234371440 is an apocalyptic number.

234371440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234371440 is an abundant number, since it is smaller than the sum of its proper divisors (310542344).

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

234371440 is a wasteful number, since it uses less digits than its factorization.

234371440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2929656 (or 2929650 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 234371440 is about 15309.1946228402. The cubic root of 234371440 is about 616.5498968904.

The spelling of 234371440 in words is "two hundred thirty-four million, three hundred seventy-one thousand, four hundred forty".