4779540 has 96 divisors (see below), whose sum is σ = 15240960. Its totient is φ = 1243008.

The previous prime is 4779521. The next prime is 4779547. The reversal of 4779540 is 459774.

It is a happy number.

4779540 is a `hidden beast` number, since 47 + 79 + 540 = 666.

It is a super-2 number, since 2×4779540² = 45688005223200, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 4779495 and 4779504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4779547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28537 + ... + 28703.

It is an arithmetic number, because the mean of its divisors is an integer number (158760).

Almost surely, 2^4779540 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 4779540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7620480).

4779540 is an abundant number, since it is smaller than the sum of its proper divisors (10461420).

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

4779540 is a wasteful number, since it uses less digits than its factorization.

4779540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 4779540 is about 2186.2159088251. The cubic root of 4779540 is about 168.4465162637.

The spelling of 4779540 in words is "four million, seven hundred seventy-nine thousand, five hundred forty".