40621132120 has 128 divisors (see below), whose sum is σ = 99801072000. Its totient is φ = 14819328000.

The previous prime is 40621132081. The next prime is 40621132147. The reversal of 40621132120 is 2123112604.

It is a junction number, because it is equal to n+sod(n) for n = 40621132091 and 40621132100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4205056 + ... + 4214704.

It is an arithmetic number, because the mean of its divisors is an integer number (779695875).

Almost surely, 2^40621132120 is an apocalyptic number.

40621132120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40621132120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49900536000).

40621132120 is an abundant number, since it is smaller than the sum of its proper divisors (59179939880).

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

40621132120 is a wasteful number, since it uses less digits than its factorization.

40621132120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9869 (or 9865 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 40621132120 its reverse (2123112604), we get a palindrome (42744244724).

The spelling of 40621132120 in words is "forty billion, six hundred twenty-one million, one hundred thirty-two thousand, one hundred twenty".