4651840 has 28 divisors (see below), whose sum is σ = 11077956. Its totient is φ = 1860608.

The previous prime is 4651837. The next prime is 4651841. The reversal of 4651840 is 481564.

It can be written as a sum of positive squares in 2 ways, for example, as 1382976 + 3268864 = 1176^2 + 1808^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4651799 and 4651808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4651841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6949 + ... + 7588.

Almost surely, 2^4651840 is an apocalyptic number.

4651840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4651840 is an abundant number, since it is smaller than the sum of its proper divisors (6426116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4651840 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 12 representation: 4651840 = (1684054)₁₂.

4651840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14554 (or 14544 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 4651840 is about 2156.8124628720. The cubic root of 4651840 is about 166.9327660318.

The spelling of 4651840 in words is "four million, six hundred fifty-one thousand, eight hundred forty".