201061404 has 72 divisors (see below), whose sum is σ = 524841408. Its totient is φ = 64851840.

The previous prime is 201061373. The next prime is 201061409. The reversal of 201061404 is 404160102.

201061404 is a `hidden beast` number, since 201 + 0 + 61 + 404 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201061409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 360694 + ... + 361250.

It is an arithmetic number, because the mean of its divisors is an integer number (7289464).

Almost surely, 2^201061404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201061404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262420704).

201061404 is an abundant number, since it is smaller than the sum of its proper divisors (323780004).

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

201061404 is a wasteful number, since it uses less digits than its factorization.

201061404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875 (or 870 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 201061404 is about 14179.6122655029. The cubic root of 201061404 is about 585.8362443185.

The spelling of 201061404 in words is "two hundred one million, sixty-one thousand, four hundred four".