81048030 has 32 divisors (see below), whose sum is σ = 222303744. Its totient is φ = 18525216.

The previous prime is 81048029. The next prime is 81048041. The reversal of 81048030 is 3084018.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192762 + ... + 193181.

It is an arithmetic number, because the mean of its divisors is an integer number (6946992).

Almost surely, 2^81048030 is an apocalyptic number.

81048030 is an abundant number, since it is smaller than the sum of its proper divisors (141255714).

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

81048030 is a wasteful number, since it uses less digits than its factorization.

81048030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385960.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 81048030 is about 9002.6679378949. The cubic root of 81048030 is about 432.7603742522.

The spelling of 81048030 in words is "eighty-one million, forty-eight thousand, thirty".