401769079 has 4 divisors (see below), whose sum is σ = 422914840. Its totient is φ = 380623320.

The previous prime is 401769059. The next prime is 401769107. The reversal of 401769079 is 970967104.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 401769079 - 2⁷ = 401768951 is a prime.

It is a super-2 number, since 2×401769079² = 322836785681016482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401769029) 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 3 ways as a sum of consecutive naturals, for example, 10572852 + ... + 10572889.

It is an arithmetic number, because the mean of its divisors is an integer number (105728710).

Almost surely, 2^401769079 is an apocalyptic number.

401769079 is a deficient number, since it is larger than the sum of its proper divisors (21145761).

401769079 is a wasteful number, since it uses less digits than its factorization.

401769079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21145760.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 401769079 is about 20044.1781822054. The cubic root of 401769079 is about 737.8909260980.

The spelling of 401769079 in words is "four hundred one million, seven hundred sixty-nine thousand, seventy-nine".