7402393 has 4 divisors (see below), whose sum is σ = 7449700. Its totient is φ = 7355088.

The previous prime is 7402363. The next prime is 7402399. The reversal of 7402393 is 3932047.

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

It can be written as a sum of positive squares in 2 ways, for example, as 683929 + 6718464 = 827^2 + 2592^2 .

It is a cyclic number.

It is not a de Polignac number, because 7402393 - 2¹⁷ = 7271321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7402399) 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 3 ways as a sum of consecutive naturals, for example, 23418 + ... + 23731.

It is an arithmetic number, because the mean of its divisors is an integer number (1862425).

Almost surely, 2^7402393 is an apocalyptic number.

It is an amenable number.

7402393 is a deficient number, since it is larger than the sum of its proper divisors (47307).

7402393 is a wasteful number, since it uses less digits than its factorization.

7402393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47306.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 7402393 is about 2720.7339083416. The cubic root of 7402393 is about 194.8905193030.

It can be divided in two parts, 7 and 402393, that multiplied together give a triangular number (2816751 = T₂₃₇₃).

The spelling of 7402393 in words is "seven million, four hundred two thousand, three hundred ninety-three".