7492405 has 4 divisors (see below), whose sum is σ = 8990892. Its totient is φ = 5993920.

The previous prime is 7492391. The next prime is 7492423. The reversal of 7492405 is 5042947.

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 3721041 + 3771364 = 1929^2 + 1942^2 .

It is not a de Polignac number, because 7492405 - 2⁹ = 7491893 is a prime.

It is a super-2 number, since 2×7492405² = 112272265368050, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 749236 + ... + 749245.

It is an arithmetic number, because the mean of its divisors is an integer number (2247723).

Almost surely, 2^7492405 is an apocalyptic number.

It is an amenable number.

7492405 is a deficient number, since it is larger than the sum of its proper divisors (1498487).

7492405 is a wasteful number, since it uses less digits than its factorization.

7492405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498486.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 7492405 is about 2737.2257853528. The cubic root of 7492405 is about 195.6772854761.

The spelling of 7492405 in words is "seven million, four hundred ninety-two thousand, four hundred five".