374143993 has 4 divisors (see below), whose sum is σ = 387045540. Its totient is φ = 361242448.

The previous prime is 374143981. The next prime is 374143999. The reversal of 374143993 is 399341473.

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 271162089 + 102981904 = 16467^2 + 10148^2 .

It is a cyclic number.

It is not a de Polignac number, because 374143993 - 2¹⁷ = 374012921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (374143999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6450730 + ... + 6450787.

It is an arithmetic number, because the mean of its divisors is an integer number (96761385).

Almost surely, 2^374143993 is an apocalyptic number.

It is an amenable number.

374143993 is a deficient number, since it is larger than the sum of its proper divisors (12901547).

374143993 is a wasteful number, since it uses less digits than its factorization.

374143993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12901546.

The product of its digits is 244944, while the sum is 43.

The square root of 374143993 is about 19342.8020979381. The cubic root of 374143993 is about 720.5756667965.

The spelling of 374143993 in words is "three hundred seventy-four million, one hundred forty-three thousand, nine hundred ninety-three".