1002540494 has 16 divisors (see below), whose sum is σ = 1526065920. Its totient is φ = 493878840.

The previous prime is 1002540433. The next prime is 1002540499. The reversal of 1002540494 is 4940452001.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002540499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71117 + ... + 84039.

It is an arithmetic number, because the mean of its divisors is an integer number (95379120).

Almost surely, 2^1002540494 is an apocalyptic number.

1002540494 is a deficient number, since it is larger than the sum of its proper divisors (523525426).

1002540494 is a wasteful number, since it uses less digits than its factorization.

1002540494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13495.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 1002540494 is about 31662.9198590402. The cubic root of 1002540494 is about 1000.8461152205.

Adding to 1002540494 its reverse (4940452001), we get a palindrome (5942992495).

The spelling of 1002540494 in words is "one billion, two million, five hundred forty thousand, four hundred ninety-four".