43401042 has 32 divisors (see below), whose sum is σ = 98804160. Its totient is φ = 14113440.

The previous prime is 43401031. The next prime is 43401047. The reversal of 43401042 is 24010434.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (43401047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7588 + ... + 12015.

It is an arithmetic number, because the mean of its divisors is an integer number (3087630).

Almost surely, 2^43401042 is an apocalyptic number.

43401042 is an abundant number, since it is smaller than the sum of its proper divisors (55403118).

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

43401042 is a wasteful number, since it uses less digits than its factorization.

43401042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19655 (or 19649 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 43401042 is about 6587.9467210960. The cubic root of 43401042 is about 351.4255923092.

Adding to 43401042 its reverse (24010434), we get a palindrome (67411476).

The spelling of 43401042 in words is "forty-three million, four hundred one thousand, forty-two".