201847842 has 32 divisors (see below), whose sum is σ = 512630400. Its totient is φ = 57670704.

The previous prime is 201847829. The next prime is 201847843. The reversal of 201847842 is 248748102.

It is a junction number, because it is equal to n+sod(n) for n = 201847797 and 201847806.

It is not an unprimeable number, because it can be changed into a prime (201847843) 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, 266617 + ... + 267372.

It is an arithmetic number, because the mean of its divisors is an integer number (16019700).

Almost surely, 2^201847842 is an apocalyptic number.

201847842 is an abundant number, since it is smaller than the sum of its proper divisors (310782558).

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

201847842 is a wasteful number, since it uses less digits than its factorization.

201847842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534007 (or 534001 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The square root of 201847842 is about 14207.3164953836. The cubic root of 201847842 is about 586.5990701359.

The spelling of 201847842 in words is "two hundred one million, eight hundred forty-seven thousand, eight hundred forty-two".