1452235540 has 144 divisors (see below), whose sum is σ = 3820536720. Its totient is φ = 460615680.

The previous prime is 1452235537. The next prime is 1452235559. The reversal of 1452235540 is 455322541.

It can be written as a sum of positive squares in 8 ways, for example, as 317623684 + 1134611856 = 17822^2 + 33684^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1015546 + ... + 1016974.

It is an arithmetic number, because the mean of its divisors is an integer number (26531505).

Almost surely, 2^1452235540 is an apocalyptic number.

1452235540 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 1452235540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1910268360).

1452235540 is an abundant number, since it is smaller than the sum of its proper divisors (2368301180).

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

1452235540 is a wasteful number, since it uses less digits than its factorization.

1452235540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1530 (or 1521 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 1452235540 is about 38108.2083021493. The cubic root of 1452235540 is about 1132.4325751287.

The spelling of 1452235540 in words is "one billion, four hundred fifty-two million, two hundred thirty-five thousand, five hundred forty".