25742934 has 144 divisors (see below), whose sum is σ = 71705088. Its totient is φ = 6885648.

The previous prime is 25742909. The next prime is 25742963. The reversal of 25742934 is 43924752.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 547699 + ... + 547745.

It is an arithmetic number, because the mean of its divisors is an integer number (497952).

It is a vampire number, since it can be written as 4347 ⋅ 5922 (with its own digits).

Almost surely, 2^25742934 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25742934, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35852544).

25742934 is an abundant number, since it is smaller than the sum of its proper divisors (45962154).

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

25742934 is a wasteful number, since it uses less digits than its factorization.

25742934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 82 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 25742934 is about 5073.7495011086. The cubic root of 25742934 is about 295.2700161107.

The spelling of 25742934 in words is "twenty-five million, seven hundred forty-two thousand, nine hundred thirty-four".