3136428 has 48 divisors (see below), whose sum is σ = 8235360. Its totient is φ = 1032192.

The previous prime is 3136423. The next prime is 3136429. The reversal of 3136428 is 8246313.

It is a happy number.

3136428 is a `hidden beast` number, since 3 + 13 + 642 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (3136423) 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, 12076 + ... + 12332.

It is an arithmetic number, because the mean of its divisors is an integer number (171570).

Almost surely, 2^3136428 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 3136428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4117680).

3136428 is an abundant number, since it is smaller than the sum of its proper divisors (5098932).

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

3136428 is a wasteful number, since it uses less digits than its factorization.

3136428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383 (or 375 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 3136428 is about 1770.9963297534. The cubic root of 3136428 is about 146.3788870387.

The spelling of 3136428 in words is "three million, one hundred thirty-six thousand, four hundred twenty-eight".