4540396021446 has 16 divisors (see below), whose sum is σ = 9082518164208. Its totient is φ = 1513177653600.

The previous prime is 4540396021423. The next prime is 4540396021451. The reversal of 4540396021446 is 6441206930454.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4540396021395 and 4540396021404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71887525 + ... + 71950656.

It is an arithmetic number, because the mean of its divisors is an integer number (567657385263).

Almost surely, 2^{4540396021446} is an apocalyptic number.

4540396021446 is an abundant number, since it is smaller than the sum of its proper divisors (4542122142762).

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

4540396021446 is a wasteful number, since it uses less digits than its factorization.

4540396021446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143843447.

The product of its (nonzero) digits is 2488320, while the sum is 48.

The spelling of 4540396021446 in words is "four trillion, five hundred forty billion, three hundred ninety-six million, twenty-one thousand, four hundred forty-six".