1774040149 has 12 divisors (see below), whose sum is σ = 2067338700. Its totient is φ = 1517909568.

The previous prime is 1774040123. The next prime is 1774040189. The reversal of 1774040149 is 9410404771.

It can be written as a sum of positive squares in 2 ways, for example, as 473932900 + 1300107249 = 21770^2 + 36057^2 .

It is not a de Polignac number, because 1774040149 - 2²³ = 1765651541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1774040189) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3934 + ... + 59695.

It is an arithmetic number, because the mean of its divisors is an integer number (172278225).

Almost surely, 2^1774040149 is an apocalyptic number.

It is an amenable number.

1774040149 is a deficient number, since it is larger than the sum of its proper divisors (293298551).

1774040149 is an equidigital number, since it uses as much as digits as its factorization.

1774040149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64212 (or 64205 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 1774040149 is about 42119.3559898534. The cubic root of 1774040149 is about 1210.5641676219.

The spelling of 1774040149 in words is "one billion, seven hundred seventy-four million, forty thousand, one hundred forty-nine".