3720435438 has 8 divisors (see below), whose sum is σ = 7440870888. Its totient is φ = 1240145144.

The previous prime is 3720435419. The next prime is 3720435443. The reversal of 3720435438 is 8345340273.

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

3720435438 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 3720435396 and 3720435405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310036281 + ... + 310036292.

It is an arithmetic number, because the mean of its divisors is an integer number (930108861).

Almost surely, 2^3720435438 is an apocalyptic number.

3720435438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3720435438 is a wasteful number, since it uses less digits than its factorization.

3720435438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620072578.

The product of its (nonzero) digits is 241920, while the sum is 39.

The square root of 3720435438 is about 60995.3722670827. The cubic root of 3720435438 is about 1549.5226331559.

The spelling of 3720435438 in words is "three billion, seven hundred twenty million, four hundred thirty-five thousand, four hundred thirty-eight".