1455580240 has 20 divisors (see below), whose sum is σ = 3384224244. Its totient is φ = 582232064.

The previous prime is 1455580211. The next prime is 1455580279. The reversal of 1455580240 is 420855541.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 613651984 + 841928256 = 24772^2 + 29016^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1455580196 and 1455580205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9097297 + ... + 9097456.

Almost surely, 2^1455580240 is an apocalyptic number.

1455580240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1455580240 is an abundant number, since it is smaller than the sum of its proper divisors (1928644004).

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

1455580240 is a wasteful number, since it uses less digits than its factorization.

1455580240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18194766 (or 18194760 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 34.

The square root of 1455580240 is about 38152.0673096492. The cubic root of 1455580240 is about 1133.3012916739.

The spelling of 1455580240 in words is "one billion, four hundred fifty-five million, five hundred eighty thousand, two hundred forty".