4249647774 has 128 divisors (see below), whose sum is σ = 9922176000. Its totient is φ = 1347131520.

The previous prime is 4249647751. The next prime is 4249647797. The reversal of 4249647774 is 4777469424.

4249647774 is a `hidden beast` number, since 42 + 496 + 47 + 7 + 74 = 666.

It is an interprime number because it is at equal distance from previous prime (4249647751) and next prime (4249647797).

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (9483264) is a multiple of the sum of its prime divisors (441).

It is a self number, because there is not a number n which added to its sum of digits gives 4249647774.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24564352 + ... + 24564524.

It is an arithmetic number, because the mean of its divisors is an integer number (77517000).

Almost surely, 2^4249647774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4249647774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4961088000).

4249647774 is an abundant number, since it is smaller than the sum of its proper divisors (5672528226).

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

4249647774 is a wasteful number, since it uses less digits than its factorization.

4249647774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447 (or 441 counting only the distinct ones).

The product of its digits is 9483264, while the sum is 54.

The square root of 4249647774 is about 65189.3225459507. The cubic root of 4249647774 is about 1619.7611513434.

The spelling of 4249647774 in words is "four billion, two hundred forty-nine million, six hundred forty-seven thousand, seven hundred seventy-four".