3495491840 has 72 divisors (see below), whose sum is σ = 8497970880. Its totient is φ = 1377294336.

The previous prime is 3495491827. The next prime is 3495491891. The reversal of 3495491840 is 481945943.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65381 + ... + 106139.

Almost surely, 2^3495491840 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 3495491840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4248985440).

3495491840 is an abundant number, since it is smaller than the sum of its proper divisors (5002479040).

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

3495491840 is an equidigital number, since it uses as much as digits as its factorization.

3495491840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40847 (or 40833 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 47.

The square root of 3495491840 is about 59122.6846481112. The cubic root of 3495491840 is about 1517.6423282861.

The spelling of 3495491840 in words is "three billion, four hundred ninety-five million, four hundred ninety-one thousand, eight hundred forty".