406988 has 6 divisors (see below), whose sum is σ = 712236. Its totient is φ = 203492.

The previous prime is 406981. The next prime is 406993. The reversal of 406988 is 889604.

It is not an unprimeable number, because it can be changed into a prime (406981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50870 + ... + 50877.

It is an arithmetic number, because the mean of its divisors is an integer number (118706).

2⁴⁰⁶⁹⁸⁸ is an apocalyptic number.

It is an amenable number.

406988 is a deficient number, since it is larger than the sum of its proper divisors (305248).

406988 is a wasteful number, since it uses less digits than its factorization.

406988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101751 (or 101749 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 406988 is about 637.9561113431. The cubic root of 406988 is about 74.1072222134.

The spelling of 406988 in words is "four hundred six thousand, nine hundred eighty-eight".