405055742 has 16 divisors (see below), whose sum is σ = 747795552. Its totient is φ = 160241760.

The previous prime is 405055727. The next prime is 405055747. The reversal of 405055742 is 247550504.

It is a junction number, because it is equal to n+sod(n) for n = 405055699 and 405055708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405055747) 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, 1112609 + ... + 1112972.

It is an arithmetic number, because the mean of its divisors is an integer number (46737222).

Almost surely, 2^405055742 is an apocalyptic number.

405055742 is a deficient number, since it is larger than the sum of its proper divisors (342739810).

405055742 is a wasteful number, since it uses less digits than its factorization.

405055742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2225603.

The product of its (nonzero) digits is 28000, while the sum is 32.

The square root of 405055742 is about 20125.9966709726. The cubic root of 405055742 is about 739.8975643453.

The spelling of 405055742 in words is "four hundred five million, fifty-five thousand, seven hundred forty-two".