1961360 has 20 divisors (see below), whose sum is σ = 4560348. Its totient is φ = 784512.

The previous prime is 1961347. The next prime is 1961363. The reversal of 1961360 is 631691.

1961360 = T₃₃₄ + T₃₃₅ + ... + T₃₆₅.

It can be written as a sum of positive squares in 2 ways, for example, as 559504 + 1401856 = 748^2 + 1184^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1961363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12179 + ... + 12338.

2^1961360 is an apocalyptic number.

1961360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1961360 is an abundant number, since it is smaller than the sum of its proper divisors (2598988).

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

1961360 is a wasteful number, since it uses less digits than its factorization.

1961360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24530 (or 24524 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 1961360 is about 1400.4856300584. The cubic root of 1961360 is about 125.1754336690.

The spelling of 1961360 in words is "one million, nine hundred sixty-one thousand, three hundred sixty".