401216357 has 2 divisors, whose sum is σ = 401216358. Its totient is φ = 401216356.

The previous prime is 401216351. The next prime is 401216377. The reversal of 401216357 is 753612104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 300294241 + 100922116 = 17329^2 + 10046^2 .

It is a cyclic number.

It is not a de Polignac number, because 401216357 - 2¹⁴ = 401199973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401216351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200608178 + 200608179.

It is an arithmetic number, because the mean of its divisors is an integer number (200608179).

Almost surely, 2^401216357 is an apocalyptic number.

It is an amenable number.

401216357 is a deficient number, since it is larger than the sum of its proper divisors (1).

401216357 is an equidigital number, since it uses as much as digits as its factorization.

401216357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 401216357 is about 20030.3858425144. The cubic root of 401216357 is about 737.5523935582.

The spelling of 401216357 in words is "four hundred one million, two hundred sixteen thousand, three hundred fifty-seven".