406749155 has 8 divisors (see below), whose sum is σ = 488562000. Its totient is φ = 325090656.

The previous prime is 406749149. The next prime is 406749193. The reversal of 406749155 is 551947604.

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

It is a cyclic number.

It is not a de Polignac number, because 406749155 - 2⁸ = 406748899 is a prime.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32705 + ... + 43394.

It is an arithmetic number, because the mean of its divisors is an integer number (61070250).

Almost surely, 2^406749155 is an apocalyptic number.

406749155 is a deficient number, since it is larger than the sum of its proper divisors (81812845).

406749155 is a wasteful number, since it uses less digits than its factorization.

406749155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77173.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 406749155 is about 20168.0230811054. The cubic root of 406749155 is about 740.9272252042.

The spelling of 406749155 in words is "four hundred six million, seven hundred forty-nine thousand, one hundred fifty-five".