2551434 has 16 divisors (see below), whose sum is σ = 5371680. Its totient is φ = 805680.

The previous prime is 2551433. The next prime is 2551441. The reversal of 2551434 is 4341552.

It is not an unprimeable number, because it can be changed into a prime (2551433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11077 + ... + 11304.

It is an arithmetic number, because the mean of its divisors is an integer number (335730).

2^2551434 is an apocalyptic number.

2551434 is an abundant number, since it is smaller than the sum of its proper divisors (2820246).

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

2551434 is a wasteful number, since it uses less digits than its factorization.

2551434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22405.

The product of its digits is 2400, while the sum is 24.

The square root of 2551434 is about 1597.3208819771. The cubic root of 2551434 is about 136.6453255063.

Adding to 2551434 its reverse (4341552), we get a palindrome (6892986).

The spelling of 2551434 in words is "two million, five hundred fifty-one thousand, four hundred thirty-four".