1561296 has 40 divisors (see below), whose sum is σ = 4401504. Its totient is φ = 472960.

The previous prime is 1561279. The next prime is 1561303. The reversal of 1561296 is 6921651.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 951 + ... + 2006.

2^1561296 is an apocalyptic number.

1561296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1561296 is an abundant number, since it is smaller than the sum of its proper divisors (2840208).

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

1561296 is a wasteful number, since it uses less digits than its factorization.

1561296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2979 (or 2973 counting only the distinct ones).

The product of its digits is 3240, while the sum is 30.

The square root of 1561296 is about 1249.5183071888. The cubic root of 1561296 is about 116.0099079924.

The spelling of 1561296 in words is "one million, five hundred sixty-one thousand, two hundred ninety-six".