3142788 has 48 divisors (see below), whose sum is σ = 8285760. Its totient is φ = 918400.

The previous prime is 3142757. The next prime is 3142793. The reversal of 3142788 is 8872413.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3418 + ... + 4238.

It is an arithmetic number, because the mean of its divisors is an integer number (172620).

Almost surely, 2^3142788 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 3142788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4142880).

3142788 is an abundant number, since it is smaller than the sum of its proper divisors (5142972).

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

3142788 is a wasteful number, since it uses less digits than its factorization.

3142788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868 (or 866 counting only the distinct ones).

The product of its digits is 10752, while the sum is 33.

The square root of 3142788 is about 1772.7910198329. The cubic root of 3142788 is about 146.4777618479.

The spelling of 3142788 in words is "three million, one hundred forty-two thousand, seven hundred eighty-eight".