406269 has 16 divisors (see below), whose sum is σ = 618240. Its totient is φ = 263520.

The previous prime is 406267. The next prime is 406271. The reversal of 406269 is 962604.

It is an interprime number because it is at equal distance from previous prime (406267) and next prime (406271).

It is not a de Polignac number, because 406269 - 2¹ = 406267 is a prime.

It is a super-2 number, since 2×406269² = 330109000722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 924 + ... + 1290.

It is an arithmetic number, because the mean of its divisors is an integer number (38640).

2⁴⁰⁶²⁶⁹ is an apocalyptic number.

It is an amenable number.

406269 is a deficient number, since it is larger than the sum of its proper divisors (211971).

406269 is a wasteful number, since it uses less digits than its factorization.

406269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417 (or 411 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 406269 is about 637.3923438511. The cubic root of 406269 is about 74.0635563060.

The spelling of 406269 in words is "four hundred six thousand, two hundred sixty-nine".