7305406 has 4 divisors (see below), whose sum is σ = 10958112. Its totient is φ = 3652702.

The previous prime is 7305383. The next prime is 7305407. The reversal of 7305406 is 6045037.

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

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7305407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1826350 + ... + 1826353.

It is an arithmetic number, because the mean of its divisors is an integer number (2739528).

Almost surely, 2^7305406 is an apocalyptic number.

7305406 is a deficient number, since it is larger than the sum of its proper divisors (3652706).

7305406 is a wasteful number, since it uses less digits than its factorization.

7305406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3652705.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 7305406 is about 2702.8514572577. The cubic root of 7305406 is about 194.0356153834.

It can be divided in two parts, 7305 and 406, that multiplied together give a triangular number (2965830 = T₂₄₃₅).

The spelling of 7305406 in words is "seven million, three hundred five thousand, four hundred six".