1868425 has 12 divisors (see below), whose sum is σ = 2495500. Its totient is φ = 1379520.

The previous prime is 1868423. The next prime is 1868443. The reversal of 1868425 is 5248681.

1868425 = T₂₄₈ + T₂₄₉ + ... + T₂₉₇.

It can be written as a sum of positive squares in 6 ways, for example, as 710649 + 1157776 = 843^2 + 1076^2 .

It is not a de Polignac number, because 1868425 - 2¹ = 1868423 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1868423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2550 + ... + 3199.

2^1868425 is an apocalyptic number.

It is an amenable number.

1868425 is a deficient number, since it is larger than the sum of its proper divisors (627075).

1868425 is a wasteful number, since it uses less digits than its factorization.

1868425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5772 (or 5767 counting only the distinct ones).

The product of its digits is 15360, while the sum is 34.

The square root of 1868425 is about 1366.9034347751. The cubic root of 1868425 is about 123.1662985135.

The spelling of 1868425 in words is "one million, eight hundred sixty-eight thousand, four hundred twenty-five".