2991428500 has 48 divisors (see below), whose sum is σ = 6538738752. Its totient is φ = 1195572000.

The previous prime is 2991428431. The next prime is 2991428501. The reversal of 2991428500 is 58241992.

It is a super-2 number, since 2×2991428500² = 17897288941224500000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2991428501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 991995 + ... + 995005.

It is an arithmetic number, because the mean of its divisors is an integer number (136223724).

Almost surely, 2^2991428500 is an apocalyptic number.

2991428500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2991428500 is an abundant number, since it is smaller than the sum of its proper divisors (3547310252).

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

2991428500 is a wasteful number, since it uses less digits than its factorization.

2991428500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5017 (or 5005 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 2991428500 is about 54693.9530478462. The cubic root of 2991428500 is about 1440.8746775765.

The spelling of 2991428500 in words is "two billion, nine hundred ninety-one million, four hundred twenty-eight thousand, five hundred".