401516 has 6 divisors (see below), whose sum is σ = 702660. Its totient is φ = 200756.

The previous prime is 401507. The next prime is 401519. The reversal of 401516 is 615104.

It is a happy number.

It is a super-2 number, since 2×401516² = 322430196512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401494 and 401503.

It is not an unprimeable number, because it can be changed into a prime (401519) by changing a digit.

401516 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50186 + ... + 50193.

It is an arithmetic number, because the mean of its divisors is an integer number (117110).

2⁴⁰¹⁵¹⁶ is an apocalyptic number.

It is an amenable number.

401516 is a deficient number, since it is larger than the sum of its proper divisors (301144).

401516 is a wasteful number, since it uses less digits than its factorization.

401516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100383 (or 100381 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 401516 is about 633.6529018319. The cubic root of 401516 is about 73.7735958205.

The spelling of 401516 in words is "four hundred one thousand, five hundred sixteen".