1451313040 has 20 divisors (see below), whose sum is σ = 3374303004. Its totient is φ = 580525184.

The previous prime is 1451313023. The next prime is 1451313077. The reversal of 1451313040 is 403131541.

It can be written as a sum of positive squares in 2 ways, for example, as 727057296 + 724255744 = 26964^2 + 26912^2 .

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

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, 9070627 + ... + 9070786.

Almost surely, 2^1451313040 is an apocalyptic number.

1451313040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1451313040 is an abundant number, since it is smaller than the sum of its proper divisors (1922989964).

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

1451313040 is a wasteful number, since it uses less digits than its factorization.

1451313040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18141426 (or 18141420 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1451313040 is about 38096.1026878078. The cubic root of 1451313040 is about 1132.1927402212.

Adding to 1451313040 its reverse (403131541), we get a palindrome (1854444581).

The spelling of 1451313040 in words is "one billion, four hundred fifty-one million, three hundred thirteen thousand, forty".