406742 has 16 divisors (see below), whose sum is σ = 738720. Its totient is φ = 163968.

The previous prime is 406739. The next prime is 406789. The reversal of 406742 is 247604.

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 617 + ... + 1092.

It is an arithmetic number, because the mean of its divisors is an integer number (46170).

2⁴⁰⁶⁷⁴² is an apocalyptic number.

406742 is a deficient number, since it is larger than the sum of its proper divisors (331978).

406742 is a wasteful number, since it uses less digits than its factorization.

406742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 406742 is about 637.7632789680. The cubic root of 406742 is about 74.0922880704.

The spelling of 406742 in words is "four hundred six thousand, seven hundred forty-two".