43401612 has 48 divisors (see below), whose sum is σ = 110702592. Its totient is φ = 13175040.

The previous prime is 43401601. The next prime is 43401637. The reversal of 43401612 is 21610434.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2893 + ... + 9755.

It is an arithmetic number, because the mean of its divisors is an integer number (2306304).

Almost surely, 2^43401612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43401612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55351296).

43401612 is an abundant number, since it is smaller than the sum of its proper divisors (67300980).

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

43401612 is a wasteful number, since it uses less digits than its factorization.

43401612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6918 (or 6916 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 43401612 is about 6587.9899817774. The cubic root of 43401612 is about 351.4271307647.

The spelling of 43401612 in words is "forty-three million, four hundred one thousand, six hundred twelve".