2621250399 has 8 divisors (see below), whose sum is σ = 3528932992. Its totient is φ = 1730534040.

The previous prime is 2621250397. The next prime is 2621250461. The reversal of 2621250399 is 9930521262.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2621250399 - 2¹ = 2621250397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2621250397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4241197 + ... + 4241814.

It is an arithmetic number, because the mean of its divisors is an integer number (441116624).

Almost surely, 2^2621250399 is an apocalyptic number.

2621250399 is a deficient number, since it is larger than the sum of its proper divisors (907682593).

2621250399 is a wasteful number, since it uses less digits than its factorization.

2621250399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8483117.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 2621250399 is about 51198.1483942535. The cubic root of 2621250399 is about 1378.8049583896.

The spelling of 2621250399 in words is "two billion, six hundred twenty-one million, two hundred fifty thousand, three hundred ninety-nine".