4247389440 has 576 divisors, whose sum is σ = 17499256320. Its totient is φ = 955514880.

The previous prime is 4247389439. The next prime is 4247389451. The reversal of 4247389440 is 449837424.

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 23466150 + ... + 23466330.

Almost surely, 2^4247389440 is an apocalyptic number.

4247389440 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 4247389440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8749628160).

4247389440 is an abundant number, since it is smaller than the sum of its proper divisors (13251866880).

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

4247389440 is a wasteful number, since it uses less digits than its factorization.

4247389440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The square root of 4247389440 is about 65171.9988952311. The cubic root of 4247389440 is about 1619.4741777687.

The spelling of 4247389440 in words is "four billion, two hundred forty-seven million, three hundred eighty-nine thousand, four hundred forty".