4517940 has 96 divisors (see below), whose sum is σ = 14966784. Its totient is φ = 996480.

The previous prime is 4517927. The next prime is 4517951. The reversal of 4517940 is 497154.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 4517898 and 4517907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12847 + ... + 13193.

It is an arithmetic number, because the mean of its divisors is an integer number (155904).

Almost surely, 2^4517940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4517940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7483392).

4517940 is an abundant number, since it is smaller than the sum of its proper divisors (10448844).

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

4517940 is a wasteful number, since it uses less digits than its factorization.

4517940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 4517940 is about 2125.5446360874. The cubic root of 4517940 is about 165.3154662592.

The spelling of 4517940 in words is "four million, five hundred seventeen thousand, nine hundred forty".