4129988 has 6 divisors (see below), whose sum is σ = 7227486. Its totient is φ = 2064992.

The previous prime is 4129987. The next prime is 4130003. The reversal of 4129988 is 8899214.

It can be written as a sum of positive squares in only one way, i.e., 2079364 + 2050624 = 1442^2 + 1432^2 .

It is a super-3 number, since 3×4129988³ (a number of 21 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (4129981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 516245 + ... + 516252.

It is an arithmetic number, because the mean of its divisors is an integer number (1204581).

Almost surely, 2^4129988 is an apocalyptic number.

It is an amenable number.

4129988 is a deficient number, since it is larger than the sum of its proper divisors (3097498).

4129988 is a wasteful number, since it uses less digits than its factorization.

4129988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032501 (or 1032499 counting only the distinct ones).

The product of its digits is 41472, while the sum is 41.

The square root of 4129988 is about 2032.2371908810. The cubic root of 4129988 is about 160.4413336180.

The spelling of 4129988 in words is "four million, one hundred twenty-nine thousand, nine hundred eighty-eight".