92197440 has 140 divisors (see below), whose sum is σ = 328054716. Its totient is φ = 24579072.

The previous prime is 92197439. The next prime is 92197447. The reversal of 92197440 is 4479129.

It can be written as a sum of positive squares in 2 ways, for example, as 21233664 + 70963776 = 4608^2 + 8424^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 92197395 and 92197404.

It is not an unprimeable number, because it can be changed into a prime (92197447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 24142 + ... + 27698.

Almost surely, 2^92197440 is an apocalyptic number.

92197440 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 92197440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164027358).

92197440 is an abundant number, since it is smaller than the sum of its proper divisors (235857276).

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

92197440 is a wasteful number, since it uses less digits than its factorization.

92197440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3586 (or 3567 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 92197440 is about 9601.9498019933. The cubic root of 92197440 is about 451.7584529236.

The spelling of 92197440 in words is "ninety-two million, one hundred ninety-seven thousand, four hundred forty".