1040344530420 has 48 divisors (see below), whose sum is σ = 3137038894080. Its totient is φ = 256084807296.

The previous prime is 1040344530409. The next prime is 1040344530451. The reversal of 1040344530420 is 240354430401.

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

It is a congruent number.

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, 666886740 + ... + 666888299.

It is an arithmetic number, because the mean of its divisors is an integer number (65354976960).

Almost surely, 2^{1040344530420} is an apocalyptic number.

1040344530420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1040344530420 is an abundant number, since it is smaller than the sum of its proper divisors (2096694363660).

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

1040344530420 is a wasteful number, since it uses less digits than its factorization.

1040344530420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333775064 (or 1333775062 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 1040344530420 its reverse (240354430401), we get a palindrome (1280698960821).

The spelling of 1040344530420 in words is "one trillion, forty billion, three hundred forty-four million, five hundred thirty thousand, four hundred twenty".