82429890 has 32 divisors (see below), whose sum is σ = 204655680. Its totient is φ = 21223104.

The previous prime is 82429883. The next prime is 82429891. The reversal of 82429890 is 9892428.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82429891) 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, 46504 + ... + 48243.

It is an arithmetic number, because the mean of its divisors is an integer number (6395490).

Almost surely, 2^82429890 is an apocalyptic number.

82429890 is an abundant number, since it is smaller than the sum of its proper divisors (122225790).

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

82429890 is a wasteful number, since it uses less digits than its factorization.

82429890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94786.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 82429890 is about 9079.0908135121. The cubic root of 82429890 is about 435.2060326678.

The spelling of 82429890 in words is "eighty-two million, four hundred twenty-nine thousand, eight hundred ninety".