97942140 has 36 divisors (see below), whose sum is σ = 297091704. Its totient is φ = 26117856.

The previous prime is 97942139. The next prime is 97942171. The reversal of 97942140 is 4124979.

It is a tau number, because it is divible by the number of its divisors (36).

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 = 97942095 and 97942104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 271882 + ... + 272241.

Almost surely, 2^97942140 is an apocalyptic number.

97942140 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

97942140 is an abundant number, since it is smaller than the sum of its proper divisors (199149564).

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

97942140 is a wasteful number, since it uses less digits than its factorization.

97942140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544138 (or 544133 counting only the distinct ones).

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

The square root of 97942140 is about 9896.5721338249. The cubic root of 97942140 is about 460.9528767024.

The spelling of 97942140 in words is "ninety-seven million, nine hundred forty-two thousand, one hundred forty".