409432497 has 8 divisors (see below), whose sum is σ = 546409344. Its totient is φ = 272705328.

The previous prime is 409432391. The next prime is 409432523. The reversal of 409432497 is 794234904.

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

It is not a de Polignac number, because 409432497 - 2¹⁸ = 409170353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (409432997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58558 + ... + 65175.

It is an arithmetic number, because the mean of its divisors is an integer number (68301168).

Almost surely, 2^409432497 is an apocalyptic number.

It is an amenable number.

409432497 is a deficient number, since it is larger than the sum of its proper divisors (136976847).

409432497 is a wasteful number, since it uses less digits than its factorization.

409432497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124839.

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 409432497 is about 20234.4383910204. The cubic root of 409432497 is about 742.5529651931.

The spelling of 409432497 in words is "four hundred nine million, four hundred thirty-two thousand, four hundred ninety-seven".