234451440 has 60 divisors (see below), whose sum is σ = 787368504. Its totient is φ = 62520192.

The previous prime is 234451429. The next prime is 234451447. The reversal of 234451440 is 44154432.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234451447) 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 11 ways as a sum of consecutive naturals, for example, 162094 + ... + 163533.

Almost surely, 2^234451440 is an apocalyptic number.

234451440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234451440 is an abundant number, since it is smaller than the sum of its proper divisors (552917064).

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

234451440 is a wasteful number, since it uses less digits than its factorization.

234451440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325646 (or 325637 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 234451440 is about 15311.8072088176. The cubic root of 234451440 is about 616.6200396529.

The spelling of 234451440 in words is "two hundred thirty-four million, four hundred fifty-one thousand, four hundred forty".