43455042 has 40 divisors (see below), whose sum is σ = 97796556. Its totient is φ = 14421888.

The previous prime is 43455031. The next prime is 43455059. The reversal of 43455042 is 24055434.

It can be written as a sum of positive squares in 2 ways, for example, as 43046721 + 408321 = 6561^2 + 639^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 43454997 and 43455015.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 50278 + ... + 51134.

Almost surely, 2^43455042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43455042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48898278).

43455042 is an abundant number, since it is smaller than the sum of its proper divisors (54341514).

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

43455042 is a wasteful number, since it uses less digits than its factorization.

43455042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184 (or 1175 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 43455042 is about 6592.0438408736. The cubic root of 43455042 is about 351.5712809540.

The spelling of 43455042 in words is "forty-three million, four hundred fifty-five thousand, forty-two".