919425 has 48 divisors (see below), whose sum is σ = 1749888. Its totient is φ = 422400.

The previous prime is 919423. The next prime is 919427. The reversal of 919425 is 524919.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (919423) and next prime (919427).

It is not a de Polignac number, because 919425 - 2¹ = 919423 is a prime.

Its product of digits (3240) is a multiple of the sum of its prime factors (90).

It is a junction number, because it is equal to n+sod(n) for n = 919392 and 919401.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 919425.

It is not an unprimeable number, because it can be changed into a prime (919421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22405 + ... + 22445.

It is an arithmetic number, because the mean of its divisors is an integer number (36456).

2⁹¹⁹⁴²⁵ is an apocalyptic number.

It is an amenable number.

919425 is a deficient number, since it is larger than the sum of its proper divisors (830463).

919425 is a wasteful number, since it uses less digits than its factorization.

919425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90 (or 85 counting only the distinct ones).

The product of its digits is 3240, while the sum is 30.

The square root of 919425 is about 958.8665183434. The cubic root of 919425 is about 97.2386161319.

The spelling of 919425 in words is "nine hundred nineteen thousand, four hundred twenty-five".