406031427 has 32 divisors (see below), whose sum is σ = 611284800. Its totient is φ = 266333184.

The previous prime is 406031419. The next prime is 406031453. The reversal of 406031427 is 724130604.

406031427 is a `hidden beast` number, since 40 + 603 + 14 + 2 + 7 = 666.

It is not a de Polignac number, because 406031427 - 2³ = 406031419 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 406031427.

It is not an unprimeable number, because it can be changed into a prime (406031467) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 599413 + ... + 600089.

It is an arithmetic number, because the mean of its divisors is an integer number (19102650).

Almost surely, 2^406031427 is an apocalyptic number.

406031427 is a deficient number, since it is larger than the sum of its proper divisors (205253373).

406031427 is a wasteful number, since it uses less digits than its factorization.

406031427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012 (or 1006 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 406031427 is about 20150.2215124301. The cubic root of 406031427 is about 740.4911683191.

The spelling of 406031427 in words is "four hundred six million, thirty-one thousand, four hundred twenty-seven".