406609269 has 32 divisors (see below), whose sum is σ = 605159424. Its totient is φ = 240751680.

The previous prime is 406609241. The next prime is 406609271. The reversal of 406609269 is 962906604.

It is a de Polignac number, because none of the positive numbers 2^k-406609269 is a prime.

It is a super-2 number, since 2×406609269² = 330662195273428722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 406609269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406609219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 669564 + ... + 670170.

It is an arithmetic number, because the mean of its divisors is an integer number (18911232).

Almost surely, 2^406609269 is an apocalyptic number.

It is an amenable number.

406609269 is a deficient number, since it is larger than the sum of its proper divisors (198550155).

406609269 is a wasteful number, since it uses less digits than its factorization.

406609269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 406609269 is about 20164.5547682065. The cubic root of 406609269 is about 740.8422774926.

The spelling of 406609269 in words is "four hundred six million, six hundred nine thousand, two hundred sixty-nine".