42969828 has 48 divisors (see below), whose sum is σ = 109799424. Its totient is φ = 12971040.

The previous prime is 42969827. The next prime is 42969833. The reversal of 42969828 is 82896924.

It is a super-2 number, since 2×42969828² = 3692812236699168, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (42969827) 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, 48001 + ... + 48887.

It is an arithmetic number, because the mean of its divisors is an integer number (2287488).

Almost surely, 2^42969828 is an apocalyptic number.

It is an amenable number.

42969828 is an abundant number, since it is smaller than the sum of its proper divisors (66829596).

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

42969828 is a wasteful number, since it uses less digits than its factorization.

42969828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272 (or 1270 counting only the distinct ones).

The product of its digits is 497664, while the sum is 48.

The square root of 42969828 is about 6555.1375271614. The cubic root of 42969828 is about 350.2578453725.

The spelling of 42969828 in words is "forty-two million, nine hundred sixty-nine thousand, eight hundred twenty-eight".