356478401 has 2 divisors, whose sum is σ = 356478402. Its totient is φ = 356478400.

The previous prime is 356478377. The next prime is 356478407. The reversal of 356478401 is 104874653.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 352538176 + 3940225 = 18776^2 + 1985^2 .

It is a cyclic number.

It is not a de Polignac number, because 356478401 - 2¹⁴ = 356462017 is a prime.

It is not a weakly prime, because it can be changed into another prime (356478407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178239200 + 178239201.

It is an arithmetic number, because the mean of its divisors is an integer number (178239201).

Almost surely, 2^356478401 is an apocalyptic number.

It is an amenable number.

356478401 is a deficient number, since it is larger than the sum of its proper divisors (1).

356478401 is an equidigital number, since it uses as much as digits as its factorization.

356478401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 356478401 is about 18880.6356090043. The cubic root of 356478401 is about 709.0514351200.

The spelling of 356478401 in words is "three hundred fifty-six million, four hundred seventy-eight thousand, four hundred one".