42069828 has 12 divisors (see below), whose sum is σ = 98162960. Its totient is φ = 14023272.

The previous prime is 42069803. The next prime is 42069913. The reversal of 42069828 is 82896024.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1752898 + ... + 1752921.

Almost surely, 2^42069828 is an apocalyptic number.

It is an amenable number.

42069828 is an abundant number, since it is smaller than the sum of its proper divisors (56093132).

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

42069828 is a wasteful number, since it uses less digits than its factorization.

42069828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3505826 (or 3505824 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 42069828 is about 6486.1258082156. The cubic root of 42069828 is about 347.7951959151.

The spelling of 42069828 in words is "forty-two million, sixty-nine thousand, eight hundred twenty-eight".