401911345 has 16 divisors (see below), whose sum is σ = 528796800. Its totient is φ = 290822400.

The previous prime is 401911343. The next prime is 401911369. The reversal of 401911345 is 543119104.

It is not a de Polignac number, because 401911345 - 2¹ = 401911343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (401911343) 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 in 15 ways as a sum of consecutive naturals, for example, 7416 + ... + 29305.

It is an arithmetic number, because the mean of its divisors is an integer number (33049800).

Almost surely, 2^401911345 is an apocalyptic number.

It is an amenable number.

401911345 is a deficient number, since it is larger than the sum of its proper divisors (126885455).

401911345 is a wasteful number, since it uses less digits than its factorization.

401911345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36936.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 401911345 is about 20047.7266791025. The cubic root of 401911345 is about 737.9780112817.

The spelling of 401911345 in words is "four hundred one million, nine hundred eleven thousand, three hundred forty-five".