1455111040 has 64 divisors (see below), whose sum is σ = 3513222720. Its totient is φ = 576256000.

The previous prime is 1455111037. The next prime is 1455111043. The reversal of 1455111040 is 401115541.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1455111037) and next prime (1455111043).

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1455111043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53385 + ... + 75895.

It is an arithmetic number, because the mean of its divisors is an integer number (54894105).

Almost surely, 2^1455111040 is an apocalyptic number.

1455111040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1455111040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1756611360).

1455111040 is an abundant number, since it is smaller than the sum of its proper divisors (2058111680).

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

1455111040 is a wasteful number, since it uses less digits than its factorization.

1455111040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22631 (or 22619 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1455111040 is about 38145.9177370266. The cubic root of 1455111040 is about 1133.1795069961.

Adding to 1455111040 its reverse (401115541), we get a palindrome (1856226581).

The spelling of 1455111040 in words is "one billion, four hundred fifty-five million, one hundred eleven thousand, forty".