2621201000 has 64 divisors (see below), whose sum is σ = 6691239360. Its totient is φ = 953160000.

The previous prime is 2621200973. The next prime is 2621201071. The reversal of 2621201000 is 1021262.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108146 + ... + 130145.

It is an arithmetic number, because the mean of its divisors is an integer number (104550615).

Almost surely, 2^2621201000 is an apocalyptic number.

2621201000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2621201000 is an abundant number, since it is smaller than the sum of its proper divisors (4070038360).

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

2621201000 is a wasteful number, since it uses less digits than its factorization.

2621201000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238323 (or 238309 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2621201000 is about 51197.6659624245. The cubic root of 2621201000 is about 1378.7962968727.

Adding to 2621201000 its reverse (1021262), we get a palindrome (2622222262).

The spelling of 2621201000 in words is "two billion, six hundred twenty-one million, two hundred one thousand".