4971440 has 20 divisors (see below), whose sum is σ = 11558784. Its totient is φ = 1988544.

The previous prime is 4971437. The next prime is 4971443. The reversal of 4971440 is 441794.

It is an interprime number because it is at equal distance from previous prime (4971437) and next prime (4971443).

It is a tau number, because it is divible by the number of its divisors (20).

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (4971443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30992 + ... + 31151.

Almost surely, 2^4971440 is an apocalyptic number.

4971440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4971440 is an abundant number, since it is smaller than the sum of its proper divisors (6587344).

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

4971440 is a wasteful number, since it uses less digits than its factorization.

4971440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62156 (or 62150 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 4971440 is about 2229.6726217093. The cubic root of 4971440 is about 170.6713933695.

The spelling of 4971440 in words is "four million, nine hundred seventy-one thousand, four hundred forty".