401516212 has 12 divisors (see below), whose sum is σ = 702799300. Its totient is φ = 200716416.

The previous prime is 401516201. The next prime is 401516243. The reversal of 401516212 is 212615104.

It can be written as a sum of positive squares in 2 ways, for example, as 130782096 + 270734116 = 11436^2 + 16454^2 .

It is a super-2 number, since 2×401516212² = 322430536997657888, which contains 22 as substring.

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, 23548 + ... + 36844.

Almost surely, 2^401516212 is an apocalyptic number.

It is an amenable number.

401516212 is a deficient number, since it is larger than the sum of its proper divisors (301283088).

401516212 is a wasteful number, since it uses less digits than its factorization.

401516212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20850 (or 20848 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 401516212 is about 20037.8694476234. The cubic root of 401516212 is about 737.7360880467.

The spelling of 401516212 in words is "four hundred one million, five hundred sixteen thousand, two hundred twelve".