2621212394 has 8 divisors (see below), whose sum is σ = 3940695360. Its totient is φ = 1307647276.

The previous prime is 2621212343. The next prime is 2621212397. The reversal of 2621212394 is 4932121262.

2621212394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×2621212394² = 13741508828918422472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2621212394.

It is not an unprimeable number, because it can be changed into a prime (2621212397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1478354 + ... + 1480125.

It is an arithmetic number, because the mean of its divisors is an integer number (492586920).

Almost surely, 2^2621212394 is an apocalyptic number.

2621212394 is a deficient number, since it is larger than the sum of its proper divisors (1319482966).

2621212394 is a wasteful number, since it uses less digits than its factorization.

2621212394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2958924.

The product of its digits is 10368, while the sum is 32.

The square root of 2621212394 is about 51197.7772369075. Note that the first 3 decimals coincide. The cubic root of 2621212394 is about 1378.7982946824.

The spelling of 2621212394 in words is "two billion, six hundred twenty-one million, two hundred twelve thousand, three hundred ninety-four".