405542142530 has 32 divisors (see below), whose sum is σ = 844309436544. Its totient is φ = 137367801216.

The previous prime is 405542142517. The next prime is 405542142547. The reversal of 405542142530 is 35241245504.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34894547 + ... + 34906166.

It is an arithmetic number, because the mean of its divisors is an integer number (26384669892).

Almost surely, 2^405542142530 is an apocalyptic number.

405542142530 is an abundant number, since it is smaller than the sum of its proper divisors (438767294014).

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

405542142530 is a wasteful number, since it uses less digits than its factorization.

405542142530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69800810.

The product of its (nonzero) digits is 96000, while the sum is 35.

The spelling of 405542142530 in words is "four hundred five billion, five hundred forty-two million, one hundred forty-two thousand, five hundred thirty".