1961949362 has 8 divisors (see below), whose sum is σ = 3116037276. Its totient is φ = 923270272.

The previous prime is 1961949349. The next prime is 1961949371. The reversal of 1961949362 is 2639491691.

It can be written as a sum of positive squares in 2 ways, for example, as 1893903361 + 68046001 = 43519^2 + 8249^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1961949362.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28852163 + ... + 28852230.

Almost surely, 2^1961949362 is an apocalyptic number.

1961949362 is a deficient number, since it is larger than the sum of its proper divisors (1154087914).

1961949362 is a wasteful number, since it uses less digits than its factorization.

1961949362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57704412.

The product of its digits is 629856, while the sum is 50.

The square root of 1961949362 is about 44293.8975706586. The cubic root of 1961949362 is about 1251.8797025179.

The spelling of 1961949362 in words is "one billion, nine hundred sixty-one million, nine hundred forty-nine thousand, three hundred sixty-two".