4743640 has 32 divisors (see below), whose sum is σ = 11644560. Its totient is φ = 1724800.

The previous prime is 4743637. The next prime is 4743671. The reversal of 4743640 is 463474.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4743599 and 4743608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4951 + ... + 5830.

Almost surely, 2^4743640 is an apocalyptic number.

4743640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4743640 is an abundant number, since it is smaller than the sum of its proper divisors (6900920).

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

4743640 is a wasteful number, since it uses less digits than its factorization.

4743640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10803 (or 10799 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 4743640 is about 2177.9898989665. The cubic root of 4743640 is about 168.0237116947.

It can be divided in two parts, 474 and 3640, that added together give a palindrome (4114).

The spelling of 4743640 in words is "four million, seven hundred forty-three thousand, six hundred forty".