40132021340 has 24 divisors (see below), whose sum is σ = 85064887152. Its totient is φ = 15902781440.

The previous prime is 40132021337. The next prime is 40132021343. The reversal of 40132021340 is 4312023104.

It is an interprime number because it is at equal distance from previous prime (40132021337) and next prime (40132021343).

It is a super-2 number, since 2×40132021340² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40132021343) 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, 9374501 + ... + 9378780.

It is an arithmetic number, because the mean of its divisors is an integer number (3544370298).

Almost surely, 2^40132021340 is an apocalyptic number.

It is an amenable number.

40132021340 is an abundant number, since it is smaller than the sum of its proper divisors (44932865812).

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

40132021340 is a wasteful number, since it uses less digits than its factorization.

40132021340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18753397 (or 18753395 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 40132021340 its reverse (4312023104), we get a palindrome (44444044444).

The spelling of 40132021340 in words is "forty billion, one hundred thirty-two million, twenty-one thousand, three hundred forty".