408699141 has 4 divisors (see below), whose sum is σ = 544932192. Its totient is φ = 272466092.

The previous prime is 408699119. The next prime is 408699143. The reversal of 408699141 is 141996804.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 408699141 - 2⁹ = 408698629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 408699093 and 408699102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408699143) 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, 68116521 + ... + 68116526.

It is an arithmetic number, because the mean of its divisors is an integer number (136233048).

Almost surely, 2^408699141 is an apocalyptic number.

It is an amenable number.

408699141 is a deficient number, since it is larger than the sum of its proper divisors (136233051).

408699141 is a wasteful number, since it uses less digits than its factorization.

408699141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136233050.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 408699141 is about 20216.3087877090. The cubic root of 408699141 is about 742.1093583897.

The spelling of 408699141 in words is "four hundred eight million, six hundred ninety-nine thousand, one hundred forty-one".