1040420220440 has 32 divisors (see below), whose sum is σ = 2395386092880. Its totient is φ = 406489759872.

The previous prime is 1040420220439. The next prime is 1040420220443. The reversal of 1040420220440 is 440220240401.

1040420220440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040420220443) 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, 302446019 + ... + 302449458.

Almost surely, 2^{1040420220440} is an apocalyptic number.

1040420220440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1040420220440 is an abundant number, since it is smaller than the sum of its proper divisors (1354965872440).

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

1040420220440 is a wasteful number, since it uses less digits than its factorization.

1040420220440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604895531 (or 604895527 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 1040420220440 its reverse (440220240401), we get a palindrome (1480640460841).

The spelling of 1040420220440 in words is "one trillion, forty billion, four hundred twenty million, two hundred twenty thousand, four hundred forty".