40221031420 has 48 divisors (see below), whose sum is σ = 86564136960. Its totient is φ = 15693327936.

The previous prime is 40221031387. The next prime is 40221031421. The reversal of 40221031420 is 2413012204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40221031421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22212 + ... + 284491.

It is an arithmetic number, because the mean of its divisors is an integer number (1803419520).

Almost surely, 2^40221031420 is an apocalyptic number.

It is an amenable number.

40221031420 is an abundant number, since it is smaller than the sum of its proper divisors (46343105540).

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

40221031420 is a wasteful number, since it uses less digits than its factorization.

40221031420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306874 (or 306872 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 40221031420 its reverse (2413012204), we get a palindrome (42634043624).

The spelling of 40221031420 in words is "forty billion, two hundred twenty-one million, thirty-one thousand, four hundred twenty".