2054638 has 4 divisors (see below), whose sum is σ = 3081960. Its totient is φ = 1027318.

The previous prime is 2054629. The next prime is 2054639. The reversal of 2054638 is 8364502.

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

It is a super-2 number, since 2×2054638² = 8443074622088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2054639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513658 + ... + 513661.

It is an arithmetic number, because the mean of its divisors is an integer number (770490).

2^2054638 is an apocalyptic number.

2054638 is a deficient number, since it is larger than the sum of its proper divisors (1027322).

2054638 is a wasteful number, since it uses less digits than its factorization.

2054638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027321.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 2054638 is about 1433.4008511230. The cubic root of 2054638 is about 127.1291389002.

The spelling of 2054638 in words is "two million, fifty-four thousand, six hundred thirty-eight".