4055406 has 16 divisors (see below), whose sum is σ = 8463744. Its totient is φ = 1292984.

The previous prime is 4055399. The next prime is 4055423. The reversal of 4055406 is 6045504.

It is a Curzon number.

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, 14556 + ... + 14831.

It is an arithmetic number, because the mean of its divisors is an integer number (528984).

Almost surely, 2^4055406 is an apocalyptic number.

4055406 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

4055406 is an abundant number, since it is smaller than the sum of its proper divisors (4408338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4055406 is a wasteful number, since it uses less digits than its factorization.

4055406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29415.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 4055406 is about 2013.8038633392. The cubic root of 4055406 is about 159.4696764646.

The spelling of 4055406 in words is "four million, fifty-five thousand, four hundred six".