425191438 has 8 divisors (see below), whose sum is σ = 728899632. Its totient is φ = 182224896.

The previous prime is 425191427. The next prime is 425191453. The reversal of 425191438 is 834191524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 425191397 and 425191406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15185395 + ... + 15185422.

It is an arithmetic number, because the mean of its divisors is an integer number (91112454).

Almost surely, 2^425191438 is an apocalyptic number.

425191438 is a deficient number, since it is larger than the sum of its proper divisors (303708194).

425191438 is a wasteful number, since it uses less digits than its factorization.

425191438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30370826.

The product of its digits is 34560, while the sum is 37.

The square root of 425191438 is about 20620.1706588476. The cubic root of 425191438 is about 751.9601691122.

The spelling of 425191438 in words is "four hundred twenty-five million, one hundred ninety-one thousand, four hundred thirty-eight".