40232441220420 has 48 divisors (see below), whose sum is σ = 112654132069248. Its totient is φ = 10728337025280.

The previous prime is 40232441220371. The next prime is 40232441220481. The reversal of 40232441220420 is 2402214423204.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7740489 + ... + 11848208.

It is an arithmetic number, because the mean of its divisors is an integer number (2346961084776).

Almost surely, 2^{40232441220420} is an apocalyptic number.

It is an amenable number.

40232441220420 is an abundant number, since it is smaller than the sum of its proper divisors (72421690848828).

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

40232441220420 is a wasteful number, since it uses less digits than its factorization.

40232441220420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19622940 (or 19622938 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 40232441220420 its reverse (2402214423204), we get a palindrome (42634655643624).

The spelling of 40232441220420 in words is "forty trillion, two hundred thirty-two billion, four hundred forty-one million, two hundred twenty thousand, four hundred twenty".