3481505720 has 64 divisors (see below), whose sum is σ = 9766310400. Its totient is φ = 1085143680.

The previous prime is 3481505719. The next prime is 3481505761. The reversal of 3481505720 is 275051843.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 562100 + ... + 568259.

It is an arithmetic number, because the mean of its divisors is an integer number (152598600).

Almost surely, 2^3481505720 is an apocalyptic number.

It is an amenable number.

3481505720 is an abundant number, since it is smaller than the sum of its proper divisors (6284804680).

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

3481505720 is a wasteful number, since it uses less digits than its factorization.

3481505720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130388 (or 1130384 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 3481505720 is about 59004.2856070642. The cubic root of 3481505720 is about 1515.6154985453.

The spelling of 3481505720 in words is "three billion, four hundred eighty-one million, five hundred five thousand, seven hundred twenty".