20167406 has 16 divisors (see below), whose sum is σ = 36606816. Its totient is φ = 8134656.

The previous prime is 20167369. The next prime is 20167463. The reversal of 20167406 is 60476102.

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, 42131 + ... + 42606.

It is an arithmetic number, because the mean of its divisors is an integer number (2287926).

Almost surely, 2^20167406 is an apocalyptic number.

20167406 is a deficient number, since it is larger than the sum of its proper divisors (16439410).

20167406 is a wasteful number, since it uses less digits than its factorization.

20167406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84763.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 20167406 is about 4490.8135120488. The cubic root of 20167406 is about 272.1970080091.

It can be divided in two parts, 2016 and 7406, that multiplied together give a square (14930496 = 3864²).

The spelling of 20167406 in words is "twenty million, one hundred sixty-seven thousand, four hundred six".