74250321 has 4 divisors (see below), whose sum is σ = 99000432. Its totient is φ = 49500212.

The previous prime is 74250313. The next prime is 74250329. The reversal of 74250321 is 12305247.

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 an interprime number because it is at equal distance from previous prime (74250313) and next prime (74250329).

It is a cyclic number.

It is not a de Polignac number, because 74250321 - 2³ = 74250313 is a prime.

It is a super-2 number, since 2×74250321² = 11026220337206082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74250291 and 74250300.

It is not an unprimeable number, because it can be changed into a prime (74250329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12375051 + ... + 12375056.

It is an arithmetic number, because the mean of its divisors is an integer number (24750108).

Almost surely, 2^74250321 is an apocalyptic number.

It is an amenable number.

74250321 is a deficient number, since it is larger than the sum of its proper divisors (24750111).

74250321 is a wasteful number, since it uses less digits than its factorization.

74250321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24750110.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 74250321 is about 8616.8625960961. The cubic root of 74250321 is about 420.3065052908.

Adding to 74250321 its reverse (12305247), we get a palindrome (86555568).

The spelling of 74250321 in words is "seventy-four million, two hundred fifty thousand, three hundred twenty-one".