1442642500 has 60 divisors (see below), whose sum is σ = 3397521820. Its totient is φ = 532656000.

The previous prime is 1442642477. The next prime is 1442642533. The reversal of 1442642500 is 52462441.

It can be written as a sum of positive squares in 10 ways, for example, as 958026304 + 484616196 = 30952^2 + 22014^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10306 + ... + 54694.

Almost surely, 2^1442642500 is an apocalyptic number.

1442642500 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 1442642500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1698760910).

1442642500 is an abundant number, since it is smaller than the sum of its proper divisors (1954879320).

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

1442642500 is a wasteful number, since it uses less digits than its factorization.

1442642500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44426 (or 44409 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 1442642500 is about 37982.1339579545. The cubic root of 1442642500 is about 1129.9335591499.

The spelling of 1442642500 in words is "one billion, four hundred forty-two million, six hundred forty-two thousand, five hundred".