74340551 has 8 divisors (see below), whose sum is σ = 75272064. Its totient is φ = 73415160.

The previous prime is 74340533. The next prime is 74340583. The reversal of 74340551 is 15504347.

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

It is a cyclic number.

It is not a de Polignac number, because 74340551 - 2²² = 70146247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74340251) 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, 25856 + ... + 28586.

It is an arithmetic number, because the mean of its divisors is an integer number (9409008).

Almost surely, 2^74340551 is an apocalyptic number.

74340551 is a deficient number, since it is larger than the sum of its proper divisors (931513).

74340551 is a wasteful number, since it uses less digits than its factorization.

74340551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3061.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 74340551 is about 8622.0966707640. The cubic root of 74340551 is about 420.4766904330.

Adding to 74340551 its reverse (15504347), we get a palindrome (89844898).

The spelling of 74340551 in words is "seventy-four million, three hundred forty thousand, five hundred fifty-one".