401769 has 6 divisors (see below), whose sum is σ = 580346. Its totient is φ = 267840.

The previous prime is 401743. The next prime is 401771. The reversal of 401769 is 967104.

It can be written as a sum of positive squares in only one way, i.e., 374544 + 27225 = 612^2 + 165^2 .

It is not a de Polignac number, because 401769 - 2¹² = 397673 is a prime.

It is a super-2 number, since 2×401769² = 322836658722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401069) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22312 + ... + 22329.

2⁴⁰¹⁷⁶⁹ is an apocalyptic number.

It is an amenable number.

401769 is a deficient number, since it is larger than the sum of its proper divisors (178577).

401769 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 12 representation: 401769 = (174609)₁₂.

401769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44647 (or 44644 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 401769 is about 633.8525065029. The cubic root of 401769 is about 73.7890877734.

The spelling of 401769 in words is "four hundred one thousand, seven hundred sixty-nine".