1954969926 has 128 divisors (see below), whose sum is σ = 5229772800. Its totient is φ = 472625280.

The previous prime is 1954969921. The next prime is 1954969963. The reversal of 1954969926 is 6299694591.

It is a self number, because there is not a number n which added to its sum of digits gives 1954969926.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1954969921) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 318555 + ... + 324633.

It is an arithmetic number, because the mean of its divisors is an integer number (40857600).

Almost surely, 2^1954969926 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1954969926, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2614886400).

1954969926 is an abundant number, since it is smaller than the sum of its proper divisors (3274802874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1954969926 is a wasteful number, since it uses less digits than its factorization.

1954969926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6154.

The product of its digits is 9447840, while the sum is 60.

The square root of 1954969926 is about 44215.0418522928. The cubic root of 1954969926 is about 1250.3934603515.

The spelling of 1954969926 in words is "one billion, nine hundred fifty-four million, nine hundred sixty-nine thousand, nine hundred twenty-six".