4631428 has 12 divisors (see below), whose sum is σ = 8151052. Its totient is φ = 2302560.

The previous prime is 4631413. The next prime is 4631453. The reversal of 4631428 is 8241364.

It can be written as a sum of positive squares in 2 ways, for example, as 43264 + 4588164 = 208^2 + 2142^2 .

It is a super-3 number, since 3×4631428³ (a number of 21 digits) contains 333 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4631396 and 4631405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2475 + ... + 3922.

Almost surely, 2^4631428 is an apocalyptic number.

It is an amenable number.

4631428 is a deficient number, since it is larger than the sum of its proper divisors (3519624).

4631428 is a wasteful number, since it uses less digits than its factorization.

4631428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6582 (or 6580 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

The square root of 4631428 is about 2152.0752774938. The cubic root of 4631428 is about 166.6882443174.

It can be divided in two parts, 463 and 1428, that added together give a triangular number (1891 = T₆₁).

The spelling of 4631428 in words is "four million, six hundred thirty-one thousand, four hundred twenty-eight".