4001880 has 32 divisors (see below), whose sum is σ = 12006000. Its totient is φ = 1067136.

The previous prime is 4001873. The next prime is 4001891. The reversal of 4001880 is 881004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16555 + ... + 16794.

Almost surely, 2^4001880 is an apocalyptic number.

4001880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4001880 is an abundant number, since it is smaller than the sum of its proper divisors (8004120).

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

4001880 is a wasteful number, since it uses less digits than its factorization.

4001880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33363 (or 33359 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 4001880 is about 2000.4699447880. The cubic root of 4001880 is about 158.7649705848.

Adding to 4001880 its reverse (881004), we get a palindrome (4882884).

The spelling of 4001880 in words is "four million, one thousand, eight hundred eighty".