428963474 has 4 divisors (see below), whose sum is σ = 643445214. Its totient is φ = 214481736.

The previous prime is 428963471. The next prime is 428963477. The reversal of 428963474 is 474369824.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (428963471) and next prime (428963477).

It can be written as a sum of positive squares in only one way, i.e., 270832849 + 158130625 = 16457^2 + 12575^2 .

It is a super-2 number, since 2×428963474² = 368019324052297352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (428963471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107240867 + ... + 107240870.

Almost surely, 2^428963474 is an apocalyptic number.

428963474 is a deficient number, since it is larger than the sum of its proper divisors (214481740).

428963474 is a wasteful number, since it uses less digits than its factorization.

428963474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214481739.

The product of its digits is 1161216, while the sum is 47.

The square root of 428963474 is about 20711.4334124898. The cubic root of 428963474 is about 754.1772679007.

The spelling of 428963474 in words is "four hundred twenty-eight million, nine hundred sixty-three thousand, four hundred seventy-four".