7407940427 has 4 divisors (see below), whose sum is σ = 7408141176. Its totient is φ = 7407739680.

The previous prime is 7407940387. The next prime is 7407940469. The reversal of 7407940427 is 7240497047.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 7407940427 - 2⁸ = 7407940171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7407910427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27278 + ... + 124739.

It is an arithmetic number, because the mean of its divisors is an integer number (1852035294).

Almost surely, 2^7407940427 is an apocalyptic number.

7407940427 is a deficient number, since it is larger than the sum of its proper divisors (200749).

7407940427 is a wasteful number, since it uses less digits than its factorization.

7407940427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200748.

The product of its (nonzero) digits is 395136, while the sum is 44.

The square root of 7407940427 is about 86069.3930906917. The cubic root of 7407940427 is about 1949.3919144494.

The spelling of 7407940427 in words is "seven billion, four hundred seven million, nine hundred forty thousand, four hundred twenty-seven".