7489942 has 4 divisors (see below), whose sum is σ = 11234916. Its totient is φ = 3744970.

The previous prime is 7489939. The next prime is 7489943. The reversal of 7489942 is 2499847.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7489943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1872484 + ... + 1872487.

It is an arithmetic number, because the mean of its divisors is an integer number (2808729).

Almost surely, 2^7489942 is an apocalyptic number.

7489942 is a deficient number, since it is larger than the sum of its proper divisors (3744974).

7489942 is a wasteful number, since it uses less digits than its factorization.

7489942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3744973.

The product of its digits is 145152, while the sum is 43.

The square root of 7489942 is about 2736.7758402909. The cubic root of 7489942 is about 195.6558412725.

The spelling of 7489942 in words is "seven million, four hundred eighty-nine thousand, nine hundred forty-two".