2551938 has 32 divisors (see below), whose sum is σ = 5474304. Its totient is φ = 790272.

The previous prime is 2551933. The next prime is 2551943. The reversal of 2551938 is 8391552.

It is an interprime number because it is at equal distance from previous prime (2551933) and next prime (2551943).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2551899 and 2551908.

It is not an unprimeable number, because it can be changed into a prime (2551933) 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, 12856 + ... + 13052.

It is an arithmetic number, because the mean of its divisors is an integer number (171072).

2^2551938 is an apocalyptic number.

2551938 is an abundant number, since it is smaller than the sum of its proper divisors (2922366).

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

2551938 is a wasteful number, since it uses less digits than its factorization.

2551938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346.

The product of its digits is 10800, while the sum is 33.

The square root of 2551938 is about 1597.4786383548. The cubic root of 2551938 is about 136.6543223697.

The spelling of 2551938 in words is "two million, five hundred fifty-one thousand, nine hundred thirty-eight".