2420979 has 8 divisors (see below), whose sum is σ = 3521472. Its totient is φ = 1467240.

The previous prime is 2420969. The next prime is 2420981. The reversal of 2420979 is 9790242.

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

It is not a de Polignac number, because 2420979 - 2⁸ = 2420723 is a prime.

It is a super-2 number, since 2×2420979² = 11722278636882, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 73363 = 2420979 / (2 + 4 + 2 + 0 + 9 + 7 + 9).

2420979 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2420959) 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, 36649 + ... + 36714.

It is an arithmetic number, because the mean of its divisors is an integer number (440184).

2^2420979 is an apocalyptic number.

2420979 is a deficient number, since it is larger than the sum of its proper divisors (1100493).

2420979 is a wasteful number, since it uses less digits than its factorization.

2420979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73377.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 2420979 is about 1555.9495493106. The cubic root of 2420979 is about 134.2755708672.

Adding to 2420979 its reverse (9790242), we get a palindrome (12211221).

The spelling of 2420979 in words is "two million, four hundred twenty thousand, nine hundred seventy-nine".