1442205645 has 16 divisors (see below), whose sum is σ = 2312524032. Its totient is φ = 767511360.

The previous prime is 1442205643. The next prime is 1442205671. The reversal of 1442205645 is 5465022441.

It is not a de Polignac number, because 1442205645 - 2¹ = 1442205643 is a prime.

It is a super-3 number, since 3×1442205645³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442205643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96886 + ... + 110775.

It is an arithmetic number, because the mean of its divisors is an integer number (144532752).

Almost surely, 2^1442205645 is an apocalyptic number.

1442205645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1442205645 is a deficient number, since it is larger than the sum of its proper divisors (870318387).

1442205645 is a wasteful number, since it uses less digits than its factorization.

1442205645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208132.

The product of its (nonzero) digits is 38400, while the sum is 33.

The square root of 1442205645 is about 37976.3827266368. The cubic root of 1442205645 is about 1129.8194937090.

The spelling of 1442205645 in words is "one billion, four hundred forty-two million, two hundred five thousand, six hundred forty-five".