1541021340440 has 32 divisors (see below), whose sum is σ = 3467700704880. Its totient is φ = 616336947072.

The previous prime is 1541021340427. The next prime is 1541021340449. The reversal of 1541021340440 is 440431201451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1541021340449) 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, 1887767 + ... + 2577926.

Almost surely, 2^{1541021340440} is an apocalyptic number.

1541021340440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1541021340440 is an abundant number, since it is smaller than the sum of its proper divisors (1926679364440).

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

1541021340440 is a wasteful number, since it uses less digits than its factorization.

1541021340440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4474331 (or 4474327 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 1541021340440 its reverse (440431201451), we get a palindrome (1981452541891).

The spelling of 1541021340440 in words is "one trillion, five hundred forty-one billion, twenty-one million, three hundred forty thousand, four hundred forty".