428623364 has 24 divisors (see below), whose sum is σ = 835647960. Its totient is φ = 191003904.

The previous prime is 428623297. The next prime is 428623367. The reversal of 428623364 is 463326824.

It can be written as a sum of positive squares in 4 ways, for example, as 128640964 + 299982400 = 11342^2 + 17320^2 .

It is not an unprimeable number, because it can be changed into a prime (428623367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140609 + ... + 143624.

It is an arithmetic number, because the mean of its divisors is an integer number (34818665).

Almost surely, 2^428623364 is an apocalyptic number.

It is an amenable number.

428623364 is a deficient number, since it is larger than the sum of its proper divisors (407024596).

428623364 is a wasteful number, since it uses less digits than its factorization.

428623364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284279 (or 284277 counting only the distinct ones).

The product of its digits is 165888, while the sum is 38.

The square root of 428623364 is about 20703.2211020411. The cubic root of 428623364 is about 753.9778950195.

The spelling of 428623364 in words is "four hundred twenty-eight million, six hundred twenty-three thousand, three hundred sixty-four".