3706218240 has 72 divisors (see below), whose sum is σ = 11836746768. Its totient is φ = 988323840.

The previous prime is 3706218227. The next prime is 3706218251. The reversal of 3706218240 is 428126073.

It is a congruent number.

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, 478741 + ... + 486420.

Almost surely, 2^3706218240 is an apocalyptic number.

3706218240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3706218240 is an abundant number, since it is smaller than the sum of its proper divisors (8130528528).

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

3706218240 is an equidigital number, since it uses as much as digits as its factorization.

3706218240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965185 (or 965171 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 3706218240 is about 60878.7174634946. The cubic root of 3706218240 is about 1547.5463419683.

The spelling of 3706218240 in words is "three billion, seven hundred six million, two hundred eighteen thousand, two hundred forty".