1540344461236 has 48 divisors (see below), whose sum is σ = 3106392258816. Its totient is φ = 654649761024.

The previous prime is 1540344461209. The next prime is 1540344461237. The reversal of 1540344461236 is 6321644430451.

It is a super-2 number, since 2×1540344461236² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1540344461192 and 1540344461201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540344461237) 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, 3501786 + ... + 3917038.

It is an arithmetic number, because the mean of its divisors is an integer number (64716505392).

Almost surely, 2^{1540344461236} is an apocalyptic number.

It is an amenable number.

1540344461236 is an abundant number, since it is smaller than the sum of its proper divisors (1566047797580).

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

1540344461236 is a wasteful number, since it uses less digits than its factorization.

1540344461236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416368 (or 416366 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 43.

Adding to 1540344461236 its reverse (6321644430451), we get a palindrome (7861988891687).

The spelling of 1540344461236 in words is "one trillion, five hundred forty billion, three hundred forty-four million, four hundred sixty-one thousand, two hundred thirty-six".