1961370 has 96 divisors (see below), whose sum is σ = 5690880. Its totient is φ = 466560.

The previous prime is 1961363. The next prime is 1961381. The reversal of 1961370 is 731691.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52992 + ... + 53028.

It is an arithmetic number, because the mean of its divisors is an integer number (59280).

2^1961370 is an apocalyptic number.

1961370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1961370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2845440).

1961370 is an abundant number, since it is smaller than the sum of its proper divisors (3729510).

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

1961370 is a wasteful number, since it uses less digits than its factorization.

1961370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 1961370 is about 1400.4892002440. The cubic root of 1961370 is about 125.1756464045.

It can be divided in two parts, 19613 and 70, that added together give a 9-th power (19683 = 3⁹).

The spelling of 1961370 in words is "one million, nine hundred sixty-one thousand, three hundred seventy".