40021040140 has 24 divisors (see below), whose sum is σ = 84050653680. Its totient is φ = 16007183808.

The previous prime is 40021040117. The next prime is 40021040141. The reversal of 40021040140 is 4104012004.

It is not an unprimeable number, because it can be changed into a prime (40021040141) 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, 216606 + ... + 356314.

It is an arithmetic number, because the mean of its divisors is an integer number (3502110570).

Almost surely, 2^40021040140 is an apocalyptic number.

It is an amenable number.

40021040140 is an abundant number, since it is smaller than the sum of its proper divisors (44029613540).

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

40021040140 is a wasteful number, since it uses less digits than its factorization.

40021040140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154041 (or 154039 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 40021040140 its reverse (4104012004), we get a palindrome (44125052144).

The spelling of 40021040140 in words is "forty billion, twenty-one million, forty thousand, one hundred forty".