405329442 has 32 divisors (see below), whose sum is σ = 928886400. Its totient is φ = 115506048.

The previous prime is 405329423. The next prime is 405329443. The reversal of 405329442 is 244923504.

It is not an unprimeable number, because it can be changed into a prime (405329443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3934 + ... + 28742.

It is an arithmetic number, because the mean of its divisors is an integer number (29027700).

Almost surely, 2^405329442 is an apocalyptic number.

405329442 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

405329442 is an abundant number, since it is smaller than the sum of its proper divisors (523556958).

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

405329442 is a wasteful number, since it uses less digits than its factorization.

405329442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25210.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 405329442 is about 20132.7951859646. The cubic root of 405329442 is about 740.0641787532.

The spelling of 405329442 in words is "four hundred five million, three hundred twenty-nine thousand, four hundred forty-two".