192497540 has 24 divisors (see below), whose sum is σ = 405148632. Its totient is φ = 76826880.

The previous prime is 192497527. The next prime is 192497551. The reversal of 192497540 is 45794291.

192497540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 113891584 + 78605956 = 10672^2 + 8866^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1391 + ... + 19670.

It is an arithmetic number, because the mean of its divisors is an integer number (16881193).

Almost surely, 2^192497540 is an apocalyptic number.

192497540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

192497540 is an abundant number, since it is smaller than the sum of its proper divisors (212651092).

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

192497540 is a wasteful number, since it uses less digits than its factorization.

192497540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21527 (or 21525 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 192497540 is about 13874.3482729821. The cubic root of 192497540 is about 577.3977155605.

The spelling of 192497540 in words is "one hundred ninety-two million, four hundred ninety-seven thousand, five hundred forty".