2469749 has 4 divisors (see below), whose sum is σ = 2472960. Its totient is φ = 2466540.

The previous prime is 2469679. The next prime is 2469757. The reversal of 2469749 is 9479642.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2469749 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 (2469149) 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, 314 + ... + 2244.

It is an arithmetic number, because the mean of its divisors is an integer number (618240).

2^2469749 is an apocalyptic number.

It is an amenable number.

2469749 is a deficient number, since it is larger than the sum of its proper divisors (3211).

2469749 is a wasteful number, since it uses less digits than its factorization.

2469749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3210.

The product of its digits is 108864, while the sum is 41.

The square root of 2469749 is about 1571.5435087836. The cubic root of 2469749 is about 135.1712321937.

The spelling of 2469749 in words is "two million, four hundred sixty-nine thousand, seven hundred forty-nine".