1974892549 has 8 divisors (see below), whose sum is σ = 2280289088. Its totient is φ = 1675313280.

The previous prime is 1974892537. The next prime is 1974892559. The reversal of 1974892549 is 9452984791.

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 1974892549 - 2⁷ = 1974892421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1974892493 and 1974892502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1974892529) 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, 1453587 + ... + 1454944.

It is an arithmetic number, because the mean of its divisors is an integer number (285036136).

Almost surely, 2^1974892549 is an apocalyptic number.

It is an amenable number.

1974892549 is a deficient number, since it is larger than the sum of its proper divisors (305396539).

1974892549 is an equidigital number, since it uses as much as digits as its factorization.

1974892549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2908635.

The product of its digits is 6531840, while the sum is 58.

The square root of 1974892549 is about 44439.7631519341. The cubic root of 1974892549 is about 1254.6265983297.

The spelling of 1974892549 in words is "one billion, nine hundred seventy-four million, eight hundred ninety-two thousand, five hundred forty-nine".