198102040 has 16 divisors (see below), whose sum is σ = 445729680. Its totient is φ = 79240800.

The previous prime is 198102031. The next prime is 198102053. The reversal of 198102040 is 40201891.

It is a happy number.

198102040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 198101996 and 198102014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2476236 + ... + 2476315.

It is an arithmetic number, because the mean of its divisors is an integer number (27858105).

Almost surely, 2^198102040 is an apocalyptic number.

198102040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198102040 is an abundant number, since it is smaller than the sum of its proper divisors (247627640).

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

198102040 is a wasteful number, since it uses less digits than its factorization.

198102040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4952562 (or 4952558 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 198102040 is about 14074.8726459602. The cubic root of 198102040 is about 582.9477753324.

The spelling of 198102040 in words is "one hundred ninety-eight million, one hundred two thousand, forty".