61422828 has 12 divisors (see below), whose sum is σ = 143319960. Its totient is φ = 20474272.

The previous prime is 61422799. The next prime is 61422863. The reversal of 61422828 is 82822416.

It is a happy number.

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, 2559273 + ... + 2559296.

It is an arithmetic number, because the mean of its divisors is an integer number (11943330).

Almost surely, 2^61422828 is an apocalyptic number.

It is an amenable number.

61422828 is an abundant number, since it is smaller than the sum of its proper divisors (81897132).

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

61422828 is a wasteful number, since it uses less digits than its factorization.

61422828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5118576 (or 5118574 counting only the distinct ones).

The product of its digits is 12288, while the sum is 33.

The square root of 61422828 is about 7837.2717191635. The cubic root of 61422828 is about 394.5571664937.

The spelling of 61422828 in words is "sixty-one million, four hundred twenty-two thousand, eight hundred twenty-eight".