2631388 has 12 divisors (see below), whose sum is σ = 4618152. Its totient is φ = 1311920.

The previous prime is 2631347. The next prime is 2631401. The reversal of 2631388 is 8831362.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1131 + ... + 2557.

It is an arithmetic number, because the mean of its divisors is an integer number (384846).

2^2631388 is an apocalyptic number.

It is an amenable number.

2631388 is a deficient number, since it is larger than the sum of its proper divisors (1986764).

2631388 is a wasteful number, since it uses less digits than its factorization.

2631388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892 (or 1890 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 2631388 is about 1622.1553563084. The cubic root of 2631388 is about 138.0580166336.

The spelling of 2631388 in words is "two million, six hundred thirty-one thousand, three hundred eighty-eight".