2621242949 has 8 divisors (see below), whose sum is σ = 2834127072. Its totient is φ = 2409966000.

The previous prime is 2621242927. The next prime is 2621243011. The reversal of 2621242949 is 9492421262.

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

It is not a de Polignac number, because 2621242949 - 2²⁸ = 2352807493 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 (2621242049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398399 + ... + 404924.

It is an arithmetic number, because the mean of its divisors is an integer number (354265884).

Almost surely, 2^2621242949 is an apocalyptic number.

It is an amenable number.

2621242949 is a deficient number, since it is larger than the sum of its proper divisors (212884123).

2621242949 is a wasteful number, since it uses less digits than its factorization.

2621242949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803587.

The product of its digits is 124416, while the sum is 41.

The square root of 2621242949 is about 51198.0756376644. The cubic root of 2621242949 is about 1378.8036521292.

The spelling of 2621242949 in words is "two billion, six hundred twenty-one million, two hundred forty-two thousand, nine hundred forty-nine".