401342047 has 2 divisors, whose sum is σ = 401342048. Its totient is φ = 401342046.

The previous prime is 401342009. The next prime is 401342063. The reversal of 401342047 is 740243104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401342047 - 2²³ = 392953439 is a prime.

It is a super-2 number, since 2×401342047² = 322150877380300418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401342087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200671023 + 200671024.

It is an arithmetic number, because the mean of its divisors is an integer number (200671024).

Almost surely, 2^401342047 is an apocalyptic number.

401342047 is a deficient number, since it is larger than the sum of its proper divisors (1).

401342047 is an equidigital number, since it uses as much as digits as its factorization.

401342047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 401342047 is about 20033.5230800776. The cubic root of 401342047 is about 737.6294037798.

The spelling of 401342047 in words is "four hundred one million, three hundred forty-two thousand, forty-seven".