1961436 has 24 divisors (see below), whose sum is σ = 4611600. Its totient is φ = 648832.

The previous prime is 1961431. The next prime is 1961441. The reversal of 1961436 is 6341691.

It is an interprime number because it is at equal distance from previous prime (1961431) and next prime (1961441).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1961431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1240 + ... + 2336.

It is an arithmetic number, because the mean of its divisors is an integer number (192150).

2^1961436 is an apocalyptic number.

It is an amenable number.

1961436 is an abundant number, since it is smaller than the sum of its proper divisors (2650164).

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

1961436 is a wasteful number, since it uses less digits than its factorization.

1961436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253 (or 1251 counting only the distinct ones).

The product of its digits is 3888, while the sum is 30.

The square root of 1961436 is about 1400.5127632407. The cubic root of 1961436 is about 125.1770504401.

The spelling of 1961436 in words is "one million, nine hundred sixty-one thousand, four hundred thirty-six".