25438970 has 32 divisors (see below), whose sum is σ = 48854016. Its totient is φ = 9504000.

The previous prime is 25438969. The next prime is 25438979. The reversal of 25438970 is 7983452.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25438979) 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, 25175 + ... + 26165.

It is an arithmetic number, because the mean of its divisors is an integer number (1526688).

Almost surely, 2^25438970 is an apocalyptic number.

25438970 is a deficient number, since it is larger than the sum of its proper divisors (23415046).

25438970 is a wasteful number, since it uses less digits than its factorization.

25438970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 25438970 is about 5043.7059787422. The cubic root of 25438970 is about 294.1032617356.

The spelling of 25438970 in words is "twenty-five million, four hundred thirty-eight thousand, nine hundred seventy".