1442238420 has 96 divisors (see below), whose sum is σ = 4764082176. Its totient is φ = 319017600.

The previous prime is 1442238419. The next prime is 1442238463. The reversal of 1442238420 is 248322441.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42366 + ... + 68405.

It is an arithmetic number, because the mean of its divisors is an integer number (49625856).

Almost surely, 2^1442238420 is an apocalyptic number.

1442238420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1442238420 is an abundant number, since it is smaller than the sum of its proper divisors (3321843756).

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

1442238420 is a wasteful number, since it uses less digits than its factorization.

1442238420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110821 (or 110819 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 1442238420 is about 37976.8142423769. The cubic root of 1442238420 is about 1129.8280522558.

The spelling of 1442238420 in words is "one billion, four hundred forty-two million, two hundred thirty-eight thousand, four hundred twenty".