74574401 has 4 divisors (see below), whose sum is σ = 81353904. Its totient is φ = 67794900.

The previous prime is 74574389. The next prime is 74574403. The reversal of 74574401 is 10447547.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10447547 = 11 ⋅949777.

It is a cyclic number.

It is not a de Polignac number, because 74574401 - 2¹⁰ = 74573377 is a prime.

It is a super-2 number, since 2×74574401² = 11122682569017602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74574403) 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, 3389735 + ... + 3389756.

It is an arithmetic number, because the mean of its divisors is an integer number (20338476).

Almost surely, 2^74574401 is an apocalyptic number.

It is an amenable number.

74574401 is a deficient number, since it is larger than the sum of its proper divisors (6779503).

74574401 is a wasteful number, since it uses less digits than its factorization.

74574401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6779502.

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 74574401 is about 8635.6471095107. The cubic root of 74574401 is about 420.9171209918.

It can be divided in two parts, 74 and 574401, that added together give a palindrome (574475).

The spelling of 74574401 in words is "seventy-four million, five hundred seventy-four thousand, four hundred one".