1302452540 has 24 divisors (see below), whose sum is σ = 2809074912. Its totient is φ = 506900160.

The previous prime is 1302452537. The next prime is 1302452563. The reversal of 1302452540 is 452542031.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 879296 + ... + 880775.

It is an arithmetic number, because the mean of its divisors is an integer number (117044788).

Almost surely, 2^1302452540 is an apocalyptic number.

1302452540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1302452540 is an abundant number, since it is smaller than the sum of its proper divisors (1506622372).

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

1302452540 is a wasteful number, since it uses less digits than its factorization.

1302452540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1760117 (or 1760115 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1302452540 is about 36089.5073393916. The cubic root of 1302452540 is about 1092.0787813209.

Adding to 1302452540 its reverse (452542031), we get a palindrome (1754994571).

The spelling of 1302452540 in words is "one billion, three hundred two million, four hundred fifty-two thousand, five hundred forty".