234621240 has 64 divisors (see below), whose sum is σ = 804418560. Its totient is φ = 53627520.

The previous prime is 234621209. The next prime is 234621241. The reversal of 234621240 is 42126432.

234621240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 234621240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234621241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138816 + ... + 140495.

It is an arithmetic number, because the mean of its divisors is an integer number (12569040).

Almost surely, 2^234621240 is an apocalyptic number.

234621240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234621240 is an abundant number, since it is smaller than the sum of its proper divisors (569797320).

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

234621240 is a wasteful number, since it uses less digits than its factorization.

234621240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279332 (or 279328 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 234621240 is about 15317.3509459045. The cubic root of 234621240 is about 616.7688648087.

Adding to 234621240 its reverse (42126432), we get a palindrome (276747672).

The spelling of 234621240 in words is "two hundred thirty-four million, six hundred twenty-one thousand, two hundred forty".