2420749 has 8 divisors (see below), whose sum is σ = 2585088. Its totient is φ = 2258880.

The previous prime is 2420723. The next prime is 2420767. The reversal of 2420749 is 9470242.

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

It is a cyclic number.

It is not a de Polignac number, because 2420749 - 2⁹ = 2420237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420779) 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, 1684 + ... + 2770.

It is an arithmetic number, because the mean of its divisors is an integer number (323136).

2^2420749 is an apocalyptic number.

It is an amenable number.

2420749 is a deficient number, since it is larger than the sum of its proper divisors (164339).

2420749 is a wasteful number, since it uses less digits than its factorization.

2420749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 2420749 is about 1555.8756377037. The cubic root of 2420749 is about 134.2713185435.

The spelling of 2420749 in words is "two million, four hundred twenty thousand, seven hundred forty-nine".