1538425 has 24 divisors (see below), whose sum is σ = 2232000. Its totient is φ = 1030080.

The previous prime is 1538419. The next prime is 1538429. The reversal of 1538425 is 5248351.

It is not a de Polignac number, because 1538425 - 2⁵ = 1538393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1538393 and 1538402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1538429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10251 + ... + 10399.

It is an arithmetic number, because the mean of its divisors is an integer number (93000).

2^1538425 is an apocalyptic number.

It is an amenable number.

1538425 is a deficient number, since it is larger than the sum of its proper divisors (693575).

1538425 is a wasteful number, since it uses less digits than its factorization.

1538425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225 (or 220 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 1538425 is about 1240.3326166799. The cubic root of 1538425 is about 115.4406534068.

The spelling of 1538425 in words is "one million, five hundred thirty-eight thousand, four hundred twenty-five".