74472049 has 4 divisors (see below), whose sum is σ = 75877236. Its totient is φ = 73066864.

The previous prime is 74472043. The next prime is 74472071. The reversal of 74472049 is 94027447.

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 43033600 + 31438449 = 6560^2 + 5607^2 .

It is a cyclic number.

It is not a de Polignac number, because 74472049 - 2⁷ = 74471921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74471999 and 74472017.

It is not an unprimeable number, because it can be changed into a prime (74472043) 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, 702514 + ... + 702619.

It is an arithmetic number, because the mean of its divisors is an integer number (18969309).

Almost surely, 2^74472049 is an apocalyptic number.

It is an amenable number.

74472049 is a deficient number, since it is larger than the sum of its proper divisors (1405187).

74472049 is a wasteful number, since it uses less digits than its factorization.

74472049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405186.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 74472049 is about 8629.7189409621. The cubic root of 74472049 is about 420.7244658123.

It can be divided in two parts, 744720 and 49, that added together give a square (744769 = 863²).

The spelling of 74472049 in words is "seventy-four million, four hundred seventy-two thousand, forty-nine".