40121002332 has 72 divisors (see below), whose sum is σ = 103571277264. Its totient is φ = 13090761216.

The previous prime is 40121002321. The next prime is 40121002391. The reversal of 40121002332 is 23320012104.

40121002332 is a `hidden beast` number, since 401 + 210 + 0 + 23 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 801883 + ... + 850445.

It is an arithmetic number, because the mean of its divisors is an integer number (1438489962).

Almost surely, 2^40121002332 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 40121002332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51785638632).

40121002332 is an abundant number, since it is smaller than the sum of its proper divisors (63450274932).

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

40121002332 is a wasteful number, since it uses less digits than its factorization.

40121002332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49059 (or 49054 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 40121002332 its reverse (23320012104), we get a palindrome (63441014436).

The spelling of 40121002332 in words is "forty billion, one hundred twenty-one million, two thousand, three hundred thirty-two".