193690542 has 32 divisors (see below), whose sum is σ = 401163264. Its totient is φ = 62280000.

The previous prime is 193690517. The next prime is 193690547. The reversal of 193690542 is 245096391.

It is a self number, because there is not a number n which added to its sum of digits gives 193690542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193690547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63042 + ... + 66042.

It is an arithmetic number, because the mean of its divisors is an integer number (12536352).

Almost surely, 2^193690542 is an apocalyptic number.

193690542 is an abundant number, since it is smaller than the sum of its proper divisors (207472722).

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

193690542 is a wasteful number, since it uses less digits than its factorization.

193690542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3384.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 193690542 is about 13917.2749487822. The cubic root of 193690542 is about 578.5880658181.

The spelling of 193690542 in words is "one hundred ninety-three million, six hundred ninety thousand, five hundred forty-two".