2981900 has 18 divisors (see below), whose sum is σ = 6470940. Its totient is φ = 1192720.

The previous prime is 2981899. The next prime is 2981903. The reversal of 2981900 is 91892.

It is a super-2 number, since 2×2981900² = 17783455220000, which contains 22 as substring.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (2981903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14810 + ... + 15009.

2^2981900 is an apocalyptic number.

2981900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2981900 is an abundant number, since it is smaller than the sum of its proper divisors (3489040).

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

2981900 is a wasteful number, since it uses less digits than its factorization.

2981900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29833 (or 29826 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 2981900 is about 1726.8178826964. The cubic root of 2981900 is about 143.9343193264.

The spelling of 2981900 in words is "two million, nine hundred eighty-one thousand, nine hundred".