404029427 has 2 divisors, whose sum is σ = 404029428. Its totient is φ = 404029426.

The previous prime is 404029399. The next prime is 404029487. The reversal of 404029427 is 724920404.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404029427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 404029393 and 404029402.

It is not a weakly prime, because it can be changed into another prime (404029487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202014713 + 202014714.

It is an arithmetic number, because the mean of its divisors is an integer number (202014714).

Almost surely, 2^404029427 is an apocalyptic number.

404029427 is a deficient number, since it is larger than the sum of its proper divisors (1).

404029427 is an equidigital number, since it uses as much as digits as its factorization.

404029427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 404029427 is about 20100.4832528972. The cubic root of 404029427 is about 739.2721276075.

The spelling of 404029427 in words is "four hundred four million, twenty-nine thousand, four hundred twenty-seven".