405082542 has 16 divisors (see below), whose sum is σ = 829925712. Its totient is φ = 131734080.

The previous prime is 405082537. The next prime is 405082543. The reversal of 405082542 is 245280504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405082543) 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, 823093 + ... + 823584.

It is an arithmetic number, because the mean of its divisors is an integer number (51870357).

Almost surely, 2^405082542 is an apocalyptic number.

405082542 is an abundant number, since it is smaller than the sum of its proper divisors (424843170).

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

405082542 is a wasteful number, since it uses less digits than its factorization.

405082542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646723.

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 405082542 is about 20126.6624654959. The cubic root of 405082542 is about 739.9138821138.

The spelling of 405082542 in words is "four hundred five million, eighty-two thousand, five hundred forty-two".