7340405 has 8 divisors (see below), whose sum is σ = 8825784. Its totient is φ = 5860800.

The previous prime is 7340383. The next prime is 7340419. The reversal of 7340405 is 5040437.

It can be written as a sum of positive squares in 4 ways, for example, as 2137444 + 5202961 = 1462^2 + 2281^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7340405 - 2¹² = 7336309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2195 + ... + 4415.

It is an arithmetic number, because the mean of its divisors is an integer number (1103223).

Almost surely, 2^7340405 is an apocalyptic number.

It is an amenable number.

7340405 is a deficient number, since it is larger than the sum of its proper divisors (1485379).

7340405 is a wasteful number, since it uses less digits than its factorization.

7340405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2887.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 7340405 is about 2709.3181799117. The cubic root of 7340405 is about 194.3449861123.

Subtracting from 7340405 its reverse (5040437), we obtain a cube (2299968 = 132³).

The spelling of 7340405 in words is "seven million, three hundred forty thousand, four hundred five".