541640405442 has 16 divisors (see below), whose sum is σ = 1087775754912. Its totient is φ = 179797644480.

The previous prime is 541640405419. The next prime is 541640405447. The reversal of 541640405442 is 244504046145.

It is a self number, because there is not a number n which added to its sum of digits gives 541640405442.

It is not an unprimeable number, because it can be changed into a prime (541640405447) 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, 187287768 + ... + 187290659.

It is an arithmetic number, because the mean of its divisors is an integer number (67985984682).

Almost surely, 2^541640405442 is an apocalyptic number.

541640405442 is an abundant number, since it is smaller than the sum of its proper divisors (546135349470).

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

541640405442 is a wasteful number, since it uses less digits than its factorization.

541640405442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374578673.

The product of its (nonzero) digits is 307200, while the sum is 39.

The spelling of 541640405442 in words is "five hundred forty-one billion, six hundred forty million, four hundred five thousand, four hundred forty-two".