198742402 has 8 divisors (see below), whose sum is σ = 311075136. Its totient is φ = 95050692.

The previous prime is 198742399. The next prime is 198742409. The reversal of 198742402 is 204247891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (198742409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2160198 + ... + 2160289.

It is an arithmetic number, because the mean of its divisors is an integer number (38884392).

Almost surely, 2^198742402 is an apocalyptic number.

198742402 is a deficient number, since it is larger than the sum of its proper divisors (112332734).

198742402 is a wasteful number, since it uses less digits than its factorization.

198742402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4320512.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 198742402 is about 14097.6027040061. The cubic root of 198742402 is about 583.5752231832.

The spelling of 198742402 in words is "one hundred ninety-eight million, seven hundred forty-two thousand, four hundred two".