40212005540340 has 48 divisors (see below), whose sum is σ = 113686757428608. Its totient is φ = 10619092723584.

The previous prime is 40212005540339. The next prime is 40212005540341. The reversal of 40212005540340 is 4304550021204.

It is an interprime number because it is at equal distance from previous prime (40212005540339) and next prime (40212005540341).

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

It is a junction number, because it is equal to n+sod(n) for n = 40212005540298 and 40212005540307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40212005540341) 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, 3253392327 + ... + 3253404686.

It is an arithmetic number, because the mean of its divisors is an integer number (2368474113096).

Almost surely, 2^{40212005540340} is an apocalyptic number.

It is an amenable number.

40212005540340 is an abundant number, since it is smaller than the sum of its proper divisors (73474751888268).

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

40212005540340 is a wasteful number, since it uses less digits than its factorization.

40212005540340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6506797128 (or 6506797126 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 40212005540340 its reverse (4304550021204), we get a palindrome (44516555561544).

The spelling of 40212005540340 in words is "forty trillion, two hundred twelve billion, five million, five hundred forty thousand, three hundred forty".