1604142936 has 96 divisors (see below), whose sum is σ = 4750387200. Its totient is φ = 484989120.

The previous prime is 1604142901. The next prime is 1604142937. The reversal of 1604142936 is 6392414061.

1604142936 is a `hidden beast` number, since 1 + 604 + 1 + 42 + 9 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1604142936.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604142937) 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, 383625 + ... + 387783.

It is an arithmetic number, because the mean of its divisors is an integer number (49483200).

Almost surely, 2^1604142936 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 1604142936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2375193600).

1604142936 is an abundant number, since it is smaller than the sum of its proper divisors (3146244264).

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

1604142936 is a wasteful number, since it uses less digits than its factorization.

1604142936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4669 (or 4662 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 1604142936 is about 40051.7532200527. The cubic root of 1604142936 is about 1170.6157267532.

Adding to 1604142936 its reverse (6392414061), we get a palindrome (7996556997).

The spelling of 1604142936 in words is "one billion, six hundred four million, one hundred forty-two thousand, nine hundred thirty-six".