2578433 has 24 divisors (see below), whose sum is σ = 3250080. Its totient is φ = 2021760.

The previous prime is 2578423. The next prime is 2578451. The reversal of 2578433 is 3348752.

It is a happy number.

It is not a de Polignac number, because 2578433 - 2⁴ = 2578417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2578433.

It is not an unprimeable number, because it can be changed into a prime (2578403) 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, 35285 + ... + 35357.

It is an arithmetic number, because the mean of its divisors is an integer number (135420).

It is a Proth number, since it is equal to 1259 ⋅ 2¹¹ + 1 and 1259 < 2¹¹.

2^2578433 is an apocalyptic number.

It is an amenable number.

2578433 is a deficient number, since it is larger than the sum of its proper divisors (671647).

2578433 is a wasteful number, since it uses less digits than its factorization.

2578433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 116 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 2578433 is about 1605.7499805387. The cubic root of 2578433 is about 137.1256240230.

The spelling of 2578433 in words is "two million, five hundred seventy-eight thousand, four hundred thirty-three".