1455104440 has 16 divisors (see below), whose sum is σ = 3273985080. Its totient is φ = 582041760.

The previous prime is 1455104411. The next prime is 1455104447. The reversal of 1455104440 is 444015541.

It is a junction number, because it is equal to n+sod(n) for n = 1455104399 and 1455104408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1455104447) 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, 18188766 + ... + 18188845.

Almost surely, 2^1455104440 is an apocalyptic number.

1455104440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1455104440 is an abundant number, since it is smaller than the sum of its proper divisors (1818880640).

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

1455104440 is a wasteful number, since it uses less digits than its factorization.

1455104440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36377622 (or 36377618 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 1455104440 is about 38145.8312270161. The cubic root of 1455104440 is about 1133.1777937257.

Adding to 1455104440 its reverse (444015541), we get a palindrome (1899119981).

The spelling of 1455104440 in words is "one billion, four hundred fifty-five million, one hundred four thousand, four hundred forty".