7400489449 has 4 divisors (see below), whose sum is σ = 7431454080. Its totient is φ = 7369524820.

The previous prime is 7400489431. The next prime is 7400489461. The reversal of 7400489449 is 9449840047.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7400489449 - 2⁷ = 7400489321 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7400489429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15481957 + ... + 15482434.

It is an arithmetic number, because the mean of its divisors is an integer number (1857863520).

Almost surely, 2^7400489449 is an apocalyptic number.

It is an amenable number.

7400489449 is a deficient number, since it is larger than the sum of its proper divisors (30964631).

7400489449 is a wasteful number, since it uses less digits than its factorization.

7400489449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30964630.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The square root of 7400489449 is about 86026.0974879135. The cubic root of 7400489449 is about 1948.7381228012.

The spelling of 7400489449 in words is "seven billion, four hundred million, four hundred eighty-nine thousand, four hundred forty-nine".