3721667142 has 32 divisors (see below), whose sum is σ = 7838104320. Its totient is φ = 1174811040.

The previous prime is 3721667111. The next prime is 3721667177. The reversal of 3721667142 is 2417661273.

It is a self number, because there is not a number n which added to its sum of digits gives 3721667142.

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, 414048 + ... + 422940.

It is an arithmetic number, because the mean of its divisors is an integer number (244940760).

Almost surely, 2^3721667142 is an apocalyptic number.

3721667142 is an abundant number, since it is smaller than the sum of its proper divisors (4116437178).

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

3721667142 is a wasteful number, since it uses less digits than its factorization.

3721667142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12588.

The product of its digits is 84672, while the sum is 39.

The square root of 3721667142 is about 61005.4681319634. The cubic root of 3721667142 is about 1549.6936115873.

The spelling of 3721667142 in words is "three billion, seven hundred twenty-one million, six hundred sixty-seven thousand, one hundred forty-two".