405342046 has 8 divisors (see below), whose sum is σ = 609026544. Its totient is φ = 202333200.

The previous prime is 405342023. The next prime is 405342071. The reversal of 405342046 is 640243504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×405342046² = 328604348510932232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167410 + ... + 169813.

It is an arithmetic number, because the mean of its divisors is an integer number (76128318).

Almost surely, 2^405342046 is an apocalyptic number.

405342046 is a deficient number, since it is larger than the sum of its proper divisors (203684498).

405342046 is a wasteful number, since it uses less digits than its factorization.

405342046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337826.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 405342046 is about 20133.1082051431. The cubic root of 405342046 is about 740.0718496099.

The spelling of 405342046 in words is "four hundred five million, three hundred forty-two thousand, forty-six".