74640351 has 8 divisors (see below), whose sum is σ = 99934384. Its totient is φ = 49553280.

The previous prime is 74640337. The next prime is 74640361. The reversal of 74640351 is 15304647.

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

It is not a de Polignac number, because 74640351 - 2⁹ = 74639839 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 (74640301) 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, 50896 + ... + 52341.

It is an arithmetic number, because the mean of its divisors is an integer number (12491798).

Almost surely, 2^74640351 is an apocalyptic number.

74640351 is a deficient number, since it is larger than the sum of its proper divisors (25294033).

74640351 is a wasteful number, since it uses less digits than its factorization.

74640351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103481.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 74640351 is about 8639.4647403644. The cubic root of 74640351 is about 421.0411640268.

Adding to 74640351 its reverse (15304647), we get a palindrome (89944998).

The spelling of 74640351 in words is "seventy-four million, six hundred forty thousand, three hundred fifty-one".