3720047402 has 8 divisors (see below), whose sum is σ = 5583296196. Its totient is φ = 1858948672.

The previous prime is 3720047371. The next prime is 3720047407. The reversal of 3720047402 is 2047400273.

It can be written as a sum of positive squares in 2 ways, for example, as 3249114001 + 470933401 = 57001^2 + 21701^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (3720047407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533183 + ... + 540114.

Almost surely, 2^3720047402 is an apocalyptic number.

3720047402 is a deficient number, since it is larger than the sum of its proper divisors (1863248794).

3720047402 is a wasteful number, since it uses less digits than its factorization.

3720047402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075032.

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 3720047402 is about 60992.1913198731. The cubic root of 3720047402 is about 1549.4687602979.

Adding to 3720047402 its reverse (2047400273), we get a palindrome (5767447675).

The spelling of 3720047402 in words is "three billion, seven hundred twenty million, forty-seven thousand, four hundred two".