234401154640 has 40 divisors (see below), whose sum is σ = 546355510920. Its totient is φ = 93524276736.

The previous prime is 234401154607. The next prime is 234401154643. The reversal of 234401154640 is 46451104432.

It can be written as a sum of positive squares in 4 ways, for example, as 30245383744 + 204155770896 = 173912^2 + 451836^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 234401154596 and 234401154605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234401154643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3658435 + ... + 3721954.

It is an arithmetic number, because the mean of its divisors is an integer number (13658887773).

Almost surely, 2^234401154640 is an apocalyptic number.

234401154640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

234401154640 is an abundant number, since it is smaller than the sum of its proper divisors (311954356280).

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

234401154640 is a wasteful number, since it uses less digits than its factorization.

234401154640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7380799 (or 7380793 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The spelling of 234401154640 in words is "two hundred thirty-four billion, four hundred one million, one hundred fifty-four thousand, six hundred forty".