408942147 has 8 divisors (see below), whose sum is σ = 548303040. Its totient is φ = 271104680.

The previous prime is 408942101. The next prime is 408942161. The reversal of 408942147 is 741249804.

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 408942147 - 2¹⁸ = 408680003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (408942197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380229 + ... + 381302.

It is an arithmetic number, because the mean of its divisors is an integer number (68537880).

Almost surely, 2^408942147 is an apocalyptic number.

408942147 is a deficient number, since it is larger than the sum of its proper divisors (139360893).

408942147 is a wasteful number, since it uses less digits than its factorization.

408942147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761713.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 408942147 is about 20222.3180422028. The cubic root of 408942147 is about 742.2564113835.

The spelling of 408942147 in words is "four hundred eight million, nine hundred forty-two thousand, one hundred forty-seven".