1654373242 has 4 divisors (see below), whose sum is σ = 2481559866. Its totient is φ = 827186620.

The previous prime is 1654373221. The next prime is 1654373261. The reversal of 1654373242 is 2423734561.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1643410521 + 10962721 = 40539^2 + 3311^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 413593309 + ... + 413593312.

Almost surely, 2^1654373242 is an apocalyptic number.

1654373242 is a deficient number, since it is larger than the sum of its proper divisors (827186624).

1654373242 is an equidigital number, since it uses as much as digits as its factorization.

1654373242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827186623.

The product of its digits is 120960, while the sum is 37.

The square root of 1654373242 is about 40673.9872891754. The cubic root of 1654373242 is about 1182.7088113595.

The spelling of 1654373242 in words is "one billion, six hundred fifty-four million, three hundred seventy-three thousand, two hundred forty-two".