405455542 has 8 divisors (see below), whose sum is σ = 643958856. Its totient is φ = 190802592.

The previous prime is 405455539. The next prime is 405455549. The reversal of 405455542 is 245554504.

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

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 11925163 = 405455542 / (4 + 0 + 5 + 4 + 5 + 5 + 5 + 4 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 405455498 and 405455507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405455549) by changing a digit.

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, 5962548 + ... + 5962615.

It is an arithmetic number, because the mean of its divisors is an integer number (80494857).

Almost surely, 2^405455542 is an apocalyptic number.

405455542 is a deficient number, since it is larger than the sum of its proper divisors (238503314).

405455542 is a wasteful number, since it uses less digits than its factorization.

405455542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11925182.

The product of its (nonzero) digits is 80000, while the sum is 34.

The square root of 405455542 is about 20135.9266486546. The cubic root of 405455542 is about 740.1409166749.

The spelling of 405455542 in words is "four hundred five million, four hundred fifty-five thousand, five hundred forty-two".