401544212 has 24 divisors (see below), whose sum is σ = 745285632. Its totient is φ = 188892000.

The previous prime is 401544197. The next prime is 401544287. The reversal of 401544212 is 212445104.

It is a super-2 number, since 2×401544212² = 322475508381401888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30164 + ... + 41387.

It is an arithmetic number, because the mean of its divisors is an integer number (31053568).

Almost surely, 2^401544212 is an apocalyptic number.

It is an amenable number.

401544212 is a deficient number, since it is larger than the sum of its proper divisors (343741420).

401544212 is a wasteful number, since it uses less digits than its factorization.

401544212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71639 (or 71637 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 401544212 is about 20038.5681125174. The cubic root of 401544212 is about 737.7532364870.

Adding to 401544212 its reverse (212445104), we get a palindrome (613989316).

The spelling of 401544212 in words is "four hundred one million, five hundred forty-four thousand, two hundred twelve".