1442040500 has 24 divisors (see below), whose sum is σ = 3149417544. Its totient is φ = 576816000.

The previous prime is 1442040493. The next prime is 1442040503. The reversal of 1442040500 is 50402441.

It can be written as a sum of positive squares in 4 ways, for example, as 9872164 + 1432168336 = 3142^2 + 37844^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442040503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1441541 + ... + 1442540.

It is an arithmetic number, because the mean of its divisors is an integer number (131225731).

Almost surely, 2^1442040500 is an apocalyptic number.

1442040500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1442040500 is an abundant number, since it is smaller than the sum of its proper divisors (1707377044).

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

1442040500 is a wasteful number, since it uses less digits than its factorization.

1442040500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2884100 (or 2884088 counting only the distinct ones).

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

The square root of 1442040500 is about 37974.2083525121. The cubic root of 1442040500 is about 1129.7763673668.

Adding to 1442040500 its reverse (50402441), we get a palindrome (1492442941).

The spelling of 1442040500 in words is "one billion, four hundred forty-two million, forty thousand, five hundred".