404132069 has 4 divisors (see below), whose sum is σ = 440871360. Its totient is φ = 367392780.

The previous prime is 404132051. The next prime is 404132077. The reversal of 404132069 is 960231404.

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 a de Polignac number, because none of the positive numbers 2^k-404132069 is a prime.

It is a super-2 number, since 2×404132069² = 326645458388441522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404132369) 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, 18369629 + ... + 18369650.

It is an arithmetic number, because the mean of its divisors is an integer number (110217840).

Almost surely, 2^404132069 is an apocalyptic number.

It is an amenable number.

404132069 is a deficient number, since it is larger than the sum of its proper divisors (36739291).

404132069 is a wasteful number, since it uses less digits than its factorization.

404132069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36739290.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 404132069 is about 20103.0363129553. The cubic root of 404132069 is about 739.3347253127.

The spelling of 404132069 in words is "four hundred four million, one hundred thirty-two thousand, sixty-nine".