2420751 has 4 divisors (see below), whose sum is σ = 3227672. Its totient is φ = 1613832.

The previous prime is 2420723. The next prime is 2420767. The reversal of 2420751 is 1570242.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2420751 - 2⁶ = 2420687 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420701) 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, 403456 + ... + 403461.

It is an arithmetic number, because the mean of its divisors is an integer number (806918).

2^2420751 is an apocalyptic number.

2420751 is a deficient number, since it is larger than the sum of its proper divisors (806921).

2420751 is an equidigital number, since it uses as much as digits as its factorization.

2420751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806920.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 2420751 is about 1555.8762804285. The cubic root of 2420751 is about 134.2713555213.

Adding to 2420751 its reverse (1570242), we get a palindrome (3990993).

The spelling of 2420751 in words is "two million, four hundred twenty thousand, seven hundred fifty-one".