1954950439 has 16 divisors (see below), whose sum is σ = 2142058464. Its totient is φ = 1773273600.

The previous prime is 1954950391. The next prime is 1954950449. The reversal of 1954950439 is 9340594591.

It is a cyclic number.

It is not a de Polignac number, because 1954950439 - 2⁷ = 1954950311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1954950392 and 1954950401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1954950449) 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, 263004 + ... + 270334.

It is an arithmetic number, because the mean of its divisors is an integer number (133878654).

Almost surely, 2^1954950439 is an apocalyptic number.

1954950439 is a deficient number, since it is larger than the sum of its proper divisors (187108025).

1954950439 is a wasteful number, since it uses less digits than its factorization.

1954950439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7698.

The product of its (nonzero) digits is 874800, while the sum is 49.

The square root of 1954950439 is about 44214.8214855607. The cubic root of 1954950439 is about 1250.3893057269.

The spelling of 1954950439 in words is "one billion, nine hundred fifty-four million, nine hundred fifty thousand, four hundred thirty-nine".