7402039 has 8 divisors (see below), whose sum is σ = 7831040. Its totient is φ = 6977016.

The previous prime is 7402037. The next prime is 7402049. The reversal of 7402039 is 9302047.

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 7402039 - 2¹ = 7402037 is a prime.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7402037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3364 + ... + 5110.

It is an arithmetic number, because the mean of its divisors is an integer number (978880).

Almost surely, 2^7402039 is an apocalyptic number.

7402039 is a deficient number, since it is larger than the sum of its proper divisors (429001).

7402039 is a wasteful number, since it uses less digits than its factorization.

7402039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 7402039 is about 2720.6688515878. The cubic root of 7402039 is about 194.8874125444.

The spelling of 7402039 in words is "seven million, four hundred two thousand, thirty-nine".