2632778 has 4 divisors (see below), whose sum is σ = 3949170. Its totient is φ = 1316388.

The previous prime is 2632759. The next prime is 2632781. The reversal of 2632778 is 8772362.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2550409 + 82369 = 1597^2 + 287^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658193 + ... + 658196.

2^2632778 is an apocalyptic number.

2632778 is a deficient number, since it is larger than the sum of its proper divisors (1316392).

2632778 is a wasteful number, since it uses less digits than its factorization.

2632778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316391.

The product of its digits is 28224, while the sum is 35.

The square root of 2632778 is about 1622.5837420608. The cubic root of 2632778 is about 138.0823215332.

The spelling of 2632778 in words is "two million, six hundred thirty-two thousand, seven hundred seventy-eight".