401652 has 24 divisors (see below), whose sum is σ = 1041600. Its totient is φ = 133848.

The previous prime is 401651. The next prime is 401669. The reversal of 401652 is 256104.

It is a happy number.

It is a super-2 number, since 2×401652² = 322648658208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1752 + ... + 1967.

It is an arithmetic number, because the mean of its divisors is an integer number (43400).

2⁴⁰¹⁶⁵² is an apocalyptic number.

It is an amenable number.

401652 is an abundant number, since it is smaller than the sum of its proper divisors (639948).

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

401652 is a wasteful number, since it uses less digits than its factorization.

401652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3732 (or 3724 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 401652 is about 633.7602070184. The cubic root of 401652 is about 73.7819243192.

Adding to 401652 its reverse (256104), we get a palindrome (657756).

The spelling of 401652 in words is "four hundred one thousand, six hundred fifty-two".