3898222031 has 12 divisors (see below), whose sum is σ = 4301149776. Its totient is φ = 3530334720.

The previous prime is 3898221997. The next prime is 3898222033. The reversal of 3898222031 is 1302228983.

It is a de Polignac number, because none of the positive numbers 2^k-3898222031 is a prime.

It is a super-2 number, since 2×3898222031² = 30392270005947529922, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3898222033) 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 11 ways as a sum of consecutive naturals, for example, 29426 + ... + 93071.

It is an arithmetic number, because the mean of its divisors is an integer number (358429148).

Almost surely, 2^3898222031 is an apocalyptic number.

3898222031 is a deficient number, since it is larger than the sum of its proper divisors (402927745).

3898222031 is a wasteful number, since it uses less digits than its factorization.

3898222031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122782 (or 122771 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 3898222031 is about 62435.7432165262. The cubic root of 3898222031 is about 1573.8216809981.

The spelling of 3898222031 in words is "three billion, eight hundred ninety-eight million, two hundred twenty-two thousand, thirty-one".