140405213210430 has 256 divisors, whose sum is σ = 405855024906240. Its totient is φ = 30391907622912.

The previous prime is 140405213210411. The next prime is 140405213210443. The reversal of 140405213210430 is 34012312504041.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2200366366 + ... + 2200430174.

It is an arithmetic number, because the mean of its divisors is an integer number (1585371191040).

Almost surely, 2^{140405213210430} is an apocalyptic number.

140405213210430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 140405213210430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202927512453120).

140405213210430 is an abundant number, since it is smaller than the sum of its proper divisors (265449811695810).

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

140405213210430 is a wasteful number, since it uses less digits than its factorization.

140405213210430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68375.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 140405213210430 its reverse (34012312504041), we get a palindrome (174417525714471).

The spelling of 140405213210430 in words is "one hundred forty trillion, four hundred five billion, two hundred thirteen million, two hundred ten thousand, four hundred thirty".