92081640 has 64 divisors (see below), whose sum is σ = 315711360. Its totient is φ = 21047040.

The previous prime is 92081623. The next prime is 92081653. The reversal of 92081640 is 4618029.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 92081598 and 92081607.

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, 53971 + ... + 55650.

It is an arithmetic number, because the mean of its divisors is an integer number (4932990).

Almost surely, 2^92081640 is an apocalyptic number.

It is an amenable number.

92081640 is an abundant number, since it is smaller than the sum of its proper divisors (223629720).

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

92081640 is a wasteful number, since it uses less digits than its factorization.

92081640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109642 (or 109638 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 92081640 is about 9595.9178820997. The cubic root of 92081640 is about 451.5692374525.

Adding to 92081640 its reverse (4618029), we get a palindrome (96699669).

The spelling of 92081640 in words is "ninety-two million, eighty-one thousand, six hundred forty".