3988220429 has 8 divisors (see below), whose sum is σ = 4098395448. Its totient is φ = 3878659840.

The previous prime is 3988220407. The next prime is 3988220471. The reversal of 3988220429 is 9240228893.

It can be written as a sum of positive squares in 4 ways, for example, as 996349225 + 2991871204 = 31565^2 + 54698^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-3988220429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3988220329) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 140432 + ... + 166425.

It is an arithmetic number, because the mean of its divisors is an integer number (512299431).

Almost surely, 2^3988220429 is an apocalyptic number.

It is an amenable number.

3988220429 is a deficient number, since it is larger than the sum of its proper divisors (110175019).

3988220429 is a wasteful number, since it uses less digits than its factorization.

3988220429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307215.

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 3988220429 is about 63152.3588553904. The cubic root of 3988220429 is about 1585.8412778925.

The spelling of 3988220429 in words is "three billion, nine hundred eighty-eight million, two hundred twenty thousand, four hundred twenty-nine".