650028405 has 32 divisors (see below), whose sum is σ = 1185940224. Its totient is φ = 301188096.

The previous prime is 650028389. The next prime is 650028413. The reversal of 650028405 is 504820056.

It is not a de Polignac number, because 650028405 - 2⁴ = 650028389 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94729 + ... + 101358.

It is an arithmetic number, because the mean of its divisors is an integer number (37060632).

Almost surely, 2^650028405 is an apocalyptic number.

650028405 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

650028405 is a deficient number, since it is larger than the sum of its proper divisors (535911819).

650028405 is a wasteful number, since it uses less digits than its factorization.

650028405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196125.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 650028405 is about 25495.6546297600. The cubic root of 650028405 is about 866.2517233734.

The spelling of 650028405 in words is "six hundred fifty million, twenty-eight thousand, four hundred five".