1406775049 has 3 divisors (see below), whose sum is σ = 1406812557. Its totient is φ = 1406737542.

The previous prime is 1406775031. The next prime is 1406775053. The reversal of 1406775049 is 9405776041.

The square root of 1406775049 is 37507.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 1406775049 - 2⁵ = 1406775017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1406774996 and 1406775014.

It is not an unprimeable number, because it can be changed into a prime (1406775079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 18754 + ... + 56260.

It is an arithmetic number, because the mean of its divisors is an integer number (468937519).

Almost surely, 2^1406775049 is an apocalyptic number.

1406775049 is the 37507-th square number.

1406775049 is the 18754-th centered octagonal number.

It is an amenable number.

1406775049 is a deficient number, since it is larger than the sum of its proper divisors (37508).

1406775049 is an frugal number, since it uses more digits than its factorization.

1406775049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75014 (or 37507 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 43.

The cubic root of 1406775049 is about 1120.4906037831.

The spelling of 1406775049 in words is "one billion, four hundred six million, seven hundred seventy-five thousand, forty-nine".