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4979520 = 2632571319

4979520 has 336 divisors, whose sum is σ = 22189440. Its totient is φ = 995328.

The previous prime is 4979519. The next prime is 4979531. The reversal of 4979520 is 259794.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 44 + 9 + 76 + 97 + 57 + 29 + 0 .

It is a zygodrome in base 8.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 262071 + ... + 262089.

It is an arithmetic number, because the mean of its divisors is an integer number (66040).

Almost surely, 24979520 is an apocalyptic number.

4979520 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 4979520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11094720).

4979520 is an abundant number, since it is smaller than the sum of its proper divisors (17209920).

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

4979520 is a wasteful number, since it uses less digits than its factorization.

4979520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62 (or 49 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 4979520 is about 2231.4838112789. The cubic root of 4979520 is about 170.7638064618.

The spelling of 4979520 in words is "four million, nine hundred seventy-nine thousand, five hundred twenty".