1201842906 has 48 divisors (see below), whose sum is σ = 2727346944. Its totient is φ = 352440000.

The previous prime is 1201842871. The next prime is 1201842913. The reversal of 1201842906 is 6092481021.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4195 + ... + 49206.

It is an arithmetic number, because the mean of its divisors is an integer number (56819728).

Almost surely, 2^1201842906 is an apocalyptic number.

1201842906 is an abundant number, since it is smaller than the sum of its proper divisors (1525504038).

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

1201842906 is a wasteful number, since it uses less digits than its factorization.

1201842906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53459 (or 53448 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 1201842906 is about 34667.6060032994. The cubic root of 1201842906 is about 1063.2022853429.

The spelling of 1201842906 in words is "one billion, two hundred one million, eight hundred forty-two thousand, nine hundred six".