1961432 has 32 divisors (see below), whose sum is σ = 4147200. Its totient is φ = 861600.

The previous prime is 1961431. The next prime is 1961441. The reversal of 1961432 is 2341691.

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, 2369 + ... + 3087.

It is an arithmetic number, because the mean of its divisors is an integer number (129600).

2^1961432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1961432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2073600).

1961432 is an abundant number, since it is smaller than the sum of its proper divisors (2185768).

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

1961432 is a wasteful number, since it uses less digits than its factorization.

1961432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767 (or 763 counting only the distinct ones).

The product of its digits is 1296, while the sum is 26.

The square root of 1961432 is about 1400.5113351915. The cubic root of 1961432 is about 125.1769653479.

The spelling of 1961432 in words is "one million, nine hundred sixty-one thousand, four hundred thirty-two".