40121023340 has 24 divisors (see below), whose sum is σ = 84267025920. Its totient is φ = 16045956608.

The previous prime is 40121023339. The next prime is 40121023361. The reversal of 40121023340 is 4332012104.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16172 + ... + 283731.

It is an arithmetic number, because the mean of its divisors is an integer number (3511126080).

Almost surely, 2^40121023340 is an apocalyptic number.

It is an amenable number.

40121023340 is an abundant number, since it is smaller than the sum of its proper divisors (44146002580).

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

40121023340 is a wasteful number, since it uses less digits than its factorization.

40121023340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306601 (or 306599 counting only the distinct ones).

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

Adding to 40121023340 its reverse (4332012104), we get a palindrome (44453035444).

The spelling of 40121023340 in words is "forty billion, one hundred twenty-one million, twenty-three thousand, three hundred forty".