406042254 has 32 divisors (see below), whose sum is σ = 903018240. Its totient is φ = 135242136.

The previous prime is 406042243. The next prime is 406042261. The reversal of 406042254 is 452240604.

406042254 is a `hidden beast` number, since 4 + 0 + 604 + 2 + 2 + 54 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101007 + ... + 104949.

It is an arithmetic number, because the mean of its divisors is an integer number (28219320).

Almost surely, 2^406042254 is an apocalyptic number.

406042254 is an abundant number, since it is smaller than the sum of its proper divisors (496975986).

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

406042254 is a wasteful number, since it uses less digits than its factorization.

406042254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5861 (or 5855 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 406042254 is about 20150.4901677354. The cubic root of 406042254 is about 740.4977500975.

Adding to 406042254 its reverse (452240604), we get a palindrome (858282858).

The spelling of 406042254 in words is "four hundred six million, forty-two thousand, two hundred fifty-four".