401232523788 has 240 divisors, whose sum is σ = 1180435576320. Its totient is φ = 118090814976.

The previous prime is 401232523763. The next prime is 401232523799. The reversal of 401232523788 is 887325232104.

401232523788 is a `hidden beast` number, since 4 + 0 + 1 + 23 + 252 + 378 + 8 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 10760545 + ... + 10797767.

It is an arithmetic number, because the mean of its divisors is an integer number (4918481568).

Almost surely, 2^401232523788 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401232523788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (590217788160).

401232523788 is an abundant number, since it is smaller than the sum of its proper divisors (779203052532).

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

401232523788 is a wasteful number, since it uses less digits than its factorization.

401232523788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37378 (or 37367 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 401232523788 in words is "four hundred one billion, two hundred thirty-two million, five hundred twenty-three thousand, seven hundred eighty-eight".