4957440 has 72 divisors (see below), whose sum is σ = 15845088. Its totient is φ = 1320960.

The previous prime is 4957411. The next prime is 4957441. The reversal of 4957440 is 447594.

It is a happy number.

It is a super-2 number, since 2×4957440² = 49152422707200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4957441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3195 + ... + 4485.

Almost surely, 2^4957440 is an apocalyptic number.

4957440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4957440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7922544).

4957440 is an abundant number, since it is smaller than the sum of its proper divisors (10887648).

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

4957440 is a wasteful number, since it uses less digits than its factorization.

4957440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315 (or 1301 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 4957440 is about 2226.5309339868. The cubic root of 4957440 is about 170.5110343360.

The spelling of 4957440 in words is "four million, nine hundred fifty-seven thousand, four hundred forty".