3437742520 has 64 divisors (see below), whose sum is σ = 8200339200. Its totient is φ = 1294755840.

The previous prime is 3437742509. The next prime is 3437742521. The reversal of 3437742520 is 252477343.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 3437742520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3437742521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8416 + ... + 83344.

It is an arithmetic number, because the mean of its divisors is an integer number (128130300).

Almost surely, 2^3437742520 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 3437742520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4100169600).

3437742520 is an abundant number, since it is smaller than the sum of its proper divisors (4762596680).

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

3437742520 is a wasteful number, since it uses less digits than its factorization.

3437742520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75008 (or 75004 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 37.

The square root of 3437742520 is about 58632.2651788245. The cubic root of 3437742520 is about 1509.2381754215.

The spelling of 3437742520 in words is "three billion, four hundred thirty-seven million, seven hundred forty-two thousand, five hundred twenty".