42880669 has 16 divisors (see below), whose sum is σ = 48263040. Its totient is φ = 37834560.

The previous prime is 42880667. The next prime is 42880679. The reversal of 42880669 is 96608824.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 42880669 - 2¹ = 42880667 is a prime.

It is a super-2 number, since 2×42880669² = 3677503547775122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42880667) 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, 27624 + ... + 29134.

It is an arithmetic number, because the mean of its divisors is an integer number (3016440).

Almost surely, 2^42880669 is an apocalyptic number.

It is an amenable number.

42880669 is a deficient number, since it is larger than the sum of its proper divisors (5382371).

42880669 is a wasteful number, since it uses less digits than its factorization.

42880669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 42880669 is about 6548.3332993976. Note that the first 3 decimals coincide. The cubic root of 42880669 is about 350.0154251705.

The spelling of 42880669 in words is "forty-two million, eight hundred eighty thousand, six hundred sixty-nine".