3706228178242 has 32 divisors (see below), whose sum is σ = 5716129116672. Its totient is φ = 1801396044864.

The previous prime is 3706228178209. The next prime is 3706228178281. The reversal of 3706228178242 is 2428718226073.

It is a super-2 number, since 2×3706228178242² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3706228178242.

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, 36889108 + ... + 36989440.

It is an arithmetic number, because the mean of its divisors is an integer number (178629034896).

Almost surely, 2^{3706228178242} is an apocalyptic number.

3706228178242 is the 1571884-th pentagonal number.

3706228178242 is a deficient number, since it is larger than the sum of its proper divisors (2009900938430).

3706228178242 is a wasteful number, since it uses less digits than its factorization.

3706228178242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103042.

The product of its (nonzero) digits is 3612672, while the sum is 52.

The spelling of 3706228178242 in words is "three trillion, seven hundred six billion, two hundred twenty-eight million, one hundred seventy-eight thousand, two hundred forty-two".