1950906465 has 20 divisors (see below), whose sum is σ = 3497181204. Its totient is φ = 1040483232.

The previous prime is 1950906457. The next prime is 1950906479. The reversal of 1950906465 is 5646090591.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 873557136 + 1077349329 = 29556^2 + 32823^2 .

It is not a de Polignac number, because 1950906465 - 2³ = 1950906457 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1950906465.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2408122 + ... + 2408931.

Almost surely, 2^1950906465 is an apocalyptic number.

1950906465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1950906465 is a deficient number, since it is larger than the sum of its proper divisors (1546274739).

1950906465 is an equidigital number, since it uses as much as digits as its factorization.

1950906465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4817070 (or 4817061 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 1950906465 is about 44169.0668341544. The cubic root of 1950906465 is about 1249.5265332193.

The spelling of 1950906465 in words is "one billion, nine hundred fifty million, nine hundred six thousand, four hundred sixty-five".