43662042 has 12 divisors (see below), whose sum is σ = 94601130. Its totient is φ = 14554008.

The previous prime is 43662029. The next prime is 43662053. The reversal of 43662042 is 24026634.

43662042 is a `hidden beast` number, since 4 + 36 + 620 + 4 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 42889401 + 772641 = 6549^2 + 879^2 .

It is a super-3 number, since 3×43662042³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43661997 and 43662015.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1212817 + ... + 1212852.

Almost surely, 2^43662042 is an apocalyptic number.

43662042 is an abundant number, since it is smaller than the sum of its proper divisors (50939088).

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

43662042 is a wasteful number, since it uses less digits than its factorization.

43662042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425677 (or 2425674 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 43662042 is about 6607.7259325732. The cubic root of 43662042 is about 352.1286386323.

Adding to 43662042 its reverse (24026634), we get a palindrome (67688676).

The spelling of 43662042 in words is "forty-three million, six hundred sixty-two thousand, forty-two".