409957099 has 4 divisors (see below), whose sum is σ = 411039160. Its totient is φ = 408875040.

The previous prime is 409957061. The next prime is 409957109. The reversal of 409957099 is 990759904.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 409957099 - 2²³ = 401568491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (409957049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540462 + ... + 541219.

It is an arithmetic number, because the mean of its divisors is an integer number (102759790).

Almost surely, 2^409957099 is an apocalyptic number.

409957099 is a deficient number, since it is larger than the sum of its proper divisors (1082061).

409957099 is a wasteful number, since it uses less digits than its factorization.

409957099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082060.

The product of its (nonzero) digits is 918540, while the sum is 52.

The square root of 409957099 is about 20247.3973389174. The cubic root of 409957099 is about 742.8699718780.

The spelling of 409957099 in words is "four hundred nine million, nine hundred fifty-seven thousand, ninety-nine".