3700721142 has 16 divisors (see below), whose sum is σ = 8223824880. Its totient is φ = 1233573696.

The previous prime is 3700721119. The next prime is 3700721149. The reversal of 3700721142 is 2411270073.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3700721149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34265883 + ... + 34265990.

It is an arithmetic number, because the mean of its divisors is an integer number (513989055).

Almost surely, 2^3700721142 is an apocalyptic number.

3700721142 is an abundant number, since it is smaller than the sum of its proper divisors (4523103738).

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

3700721142 is a wasteful number, since it uses less digits than its factorization.

3700721142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68531884 (or 68531878 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 3700721142 is about 60833.5527649010. The cubic root of 3700721142 is about 1546.7808515849.

The spelling of 3700721142 in words is "three billion, seven hundred million, seven hundred twenty-one thousand, one hundred forty-two".