1654433949 has 16 divisors (see below), whose sum is σ = 2653729280. Its totient is φ = 895633200.

The previous prime is 1654433933. The next prime is 1654433959. The reversal of 1654433949 is 9493344561.

It is not a de Polignac number, because 1654433949 - 2⁴ = 1654433933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1654433898 and 1654433907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1654433959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2072827 + ... + 2073624.

It is an arithmetic number, because the mean of its divisors is an integer number (165858080).

Almost surely, 2^1654433949 is an apocalyptic number.

1654433949 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1654433949 is a deficient number, since it is larger than the sum of its proper divisors (999295331).

1654433949 is a wasteful number, since it uses less digits than its factorization.

1654433949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4146480.

The product of its digits is 1399680, while the sum is 48.

The square root of 1654433949 is about 40674.7335455317. The cubic root of 1654433949 is about 1182.7232776286.

The spelling of 1654433949 in words is "one billion, six hundred fifty-four million, four hundred thirty-three thousand, nine hundred forty-nine".