1260544090 has 16 divisors (see below), whose sum is σ = 2443516488. Its totient is φ = 465431616.

The previous prime is 1260544069. The next prime is 1260544111. The reversal of 1260544090 is 904450621.

It is an interprime number because it is at equal distance from previous prime (1260544069) and next prime (1260544111).

It can be written as a sum of positive squares in 4 ways, for example, as 877285161 + 383258929 = 29619^2 + 19577^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4848117 + ... + 4848376.

Almost surely, 2^1260544090 is an apocalyptic number.

1260544090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1260544090 is a deficient number, since it is larger than the sum of its proper divisors (1182972398).

1260544090 is a wasteful number, since it uses less digits than its factorization.

1260544090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9696513.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1260544090 is about 35504.1418710550. The cubic root of 1260544090 is about 1080.2377420146.

The spelling of 1260544090 in words is "one billion, two hundred sixty million, five hundred forty-four thousand, ninety".