42628069 has 16 divisors (see below), whose sum is σ = 49190400. Its totient is φ = 36576000.

The previous prime is 42628067. The next prime is 42628087. The reversal of 42628069 is 96082624.

It is a cyclic number.

It is not a de Polignac number, because 42628069 - 2¹ = 42628067 is a prime.

It is a super-2 number, since 2×42628069² = 3634304533337522, 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 (42628067) 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, 12457 + ... + 15505.

It is an arithmetic number, because the mean of its divisors is an integer number (3074400).

Almost surely, 2^42628069 is an apocalyptic number.

It is an amenable number.

42628069 is a deficient number, since it is larger than the sum of its proper divisors (6562331).

42628069 is a wasteful number, since it uses less digits than its factorization.

42628069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3132.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 42628069 is about 6529.0174605372. The cubic root of 42628069 is about 349.3267848313.

The spelling of 42628069 in words is "forty-two million, six hundred twenty-eight thousand, sixty-nine".