401201679 has 16 divisors (see below), whose sum is σ = 547098624. Its totient is φ = 261424800.

The previous prime is 401201657. The next prime is 401201681. The reversal of 401201679 is 976102104.

It is a happy number.

It is not a de Polignac number, because 401201679 - 2¹⁶ = 401136143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401201609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38434 + ... + 47744.

It is an arithmetic number, because the mean of its divisors is an integer number (34193664).

Almost surely, 2^401201679 is an apocalyptic number.

401201679 is a deficient number, since it is larger than the sum of its proper divisors (145896945).

401201679 is a wasteful number, since it uses less digits than its factorization.

401201679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9638.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 401201679 is about 20030.0194458218. The cubic root of 401201679 is about 737.5433993038.

The spelling of 401201679 in words is "four hundred one million, two hundred one thousand, six hundred seventy-nine".