92421890 has 32 divisors (see below), whose sum is σ = 191039040. Its totient is φ = 31838400.

The previous prime is 92421887. The next prime is 92421899. The reversal of 92421890 is 9812429.

It is a self number, because there is not a number n which added to its sum of digits gives 92421890.

It is not an unprimeable number, because it can be changed into a prime (92421899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20021 + ... + 24200.

It is an arithmetic number, because the mean of its divisors is an integer number (5969970).

Almost surely, 2^92421890 is an apocalyptic number.

92421890 is an abundant number, since it is smaller than the sum of its proper divisors (98617150).

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

92421890 is a wasteful number, since it uses less digits than its factorization.

92421890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44258.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 92421890 is about 9613.6304276792. The cubic root of 92421890 is about 452.1247502009.

The spelling of 92421890 in words is "ninety-two million, four hundred twenty-one thousand, eight hundred ninety".