2429731 has 2 divisors, whose sum is σ = 2429732. Its totient is φ = 2429730.

The previous prime is 2429729. The next prime is 2429767. The reversal of 2429731 is 1379242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2429731 - 2¹ = 2429729 is a prime.

It is a super-2 number, since 2×2429731² = 11807185464722, which contains 22 as substring.

Together with 2429729, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2429731.

It is not a weakly prime, because it can be changed into another prime (2429771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1214865 + 1214866.

It is an arithmetic number, because the mean of its divisors is an integer number (1214866).

2^2429731 is an apocalyptic number.

2429731 is a deficient number, since it is larger than the sum of its proper divisors (1).

2429731 is an equidigital number, since it uses as much as digits as its factorization.

2429731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 28.

The square root of 2429731 is about 1558.7594426338. The cubic root of 2429731 is about 134.4371813170.

It can be divided in two parts, 2429 and 731, that added together give a triangular number (3160 = T₇₉).

The spelling of 2429731 in words is "two million, four hundred twenty-nine thousand, seven hundred thirty-one".