401694 has 8 divisors (see below), whose sum is σ = 803400. Its totient is φ = 133896.

The previous prime is 401689. The next prime is 401707. The reversal of 401694 is 496104.

It is a sphenic number, since it is the product of 3 distinct primes.

401694 is an admirable number.

It is a super-2 number, since 2×401694² = 322716139272, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33469 + ... + 33480.

It is an arithmetic number, because the mean of its divisors is an integer number (100425).

2⁴⁰¹⁶⁹⁴ is an apocalyptic number.

401694 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401694 is a wasteful number, since it uses less digits than its factorization.

401694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66954.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 401694 is about 633.7933417132. The cubic root of 401694 is about 73.7844959756.

Adding to 401694 its reverse (496104), we get a palindrome (897798).

The spelling of 401694 in words is "four hundred one thousand, six hundred ninety-four".