7390644423 has 8 divisors (see below), whose sum is σ = 9929415936. Its totient is φ = 4889484600.

The previous prime is 7390644341. The next prime is 7390644431. The reversal of 7390644423 is 3244460937.

It is a happy number.

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

It is not a de Polignac number, because 7390644423 - 2⁸ = 7390644167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7390644493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9402463 + ... + 9403248.

It is an arithmetic number, because the mean of its divisors is an integer number (1241176992).

Almost surely, 2^7390644423 is an apocalyptic number.

7390644423 is a deficient number, since it is larger than the sum of its proper divisors (2538771513).

7390644423 is a wasteful number, since it uses less digits than its factorization.

7390644423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18805845.

The product of its (nonzero) digits is 435456, while the sum is 42.

The square root of 7390644423 is about 85968.8572856473. The cubic root of 7390644423 is about 1947.8735902825.

The spelling of 7390644423 in words is "seven billion, three hundred ninety million, six hundred forty-four thousand, four hundred twenty-three".