1040024540 has 24 divisors (see below), whose sum is σ = 2199999312. Its totient is φ = 412972160.

The previous prime is 1040024533. The next prime is 1040024551. The reversal of 1040024540 is 454200401.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 187046 + ... + 192525.

It is an arithmetic number, because the mean of its divisors is an integer number (91666638).

Almost surely, 2^1040024540 is an apocalyptic number.

1040024540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1040024540 is an abundant number, since it is smaller than the sum of its proper divisors (1159974772).

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

1040024540 is a wasteful number, since it uses less digits than its factorization.

1040024540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379717 (or 379715 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 1040024540 is about 32249.4114674981. The cubic root of 1040024540 is about 1013.1673726459.

Adding to 1040024540 its reverse (454200401), we get a palindrome (1494224941).

The spelling of 1040024540 in words is "one billion, forty million, twenty-four thousand, five hundred forty".