401216352 has 48 divisors (see below), whose sum is σ = 1066544640. Its totient is φ = 132043392.

The previous prime is 401216351. The next prime is 401216357. The reversal of 401216352 is 253612104.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×401216352² = 321949122224375808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401216351) 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, 18868 + ... + 34035.

It is an arithmetic number, because the mean of its divisors is an integer number (22219680).

Almost surely, 2^401216352 is an apocalyptic number.

It is an amenable number.

401216352 is an abundant number, since it is smaller than the sum of its proper divisors (665328288).

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

401216352 is a wasteful number, since it uses less digits than its factorization.

401216352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52995 (or 52987 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 401216352 is about 20030.3857177040. The cubic root of 401216352 is about 737.5523904944.

Adding to 401216352 its reverse (253612104), we get a palindrome (654828456).

The spelling of 401216352 in words is "four hundred one million, two hundred sixteen thousand, three hundred fifty-two".