234991005440 has 72 divisors (see below), whose sum is σ = 595987353360. Its totient is φ = 88467193856.

The previous prime is 234991005433. The next prime is 234991005461. The reversal of 234991005440 is 44500199432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5377850 + ... + 5421369.

It is an arithmetic number, because the mean of its divisors is an integer number (8277602130).

Almost surely, 2^234991005440 is an apocalyptic number.

234991005440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234991005440 is an abundant number, since it is smaller than the sum of its proper divisors (360996347920).

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

234991005440 is a wasteful number, since it uses less digits than its factorization.

234991005440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10799257 (or 10799243 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 234991005440 in words is "two hundred thirty-four billion, nine hundred ninety-one million, five thousand, four hundred forty".