1445541020 has 72 divisors (see below), whose sum is σ = 3813405792. Its totient is φ = 450552960.

The previous prime is 1445540983. The next prime is 1445541023. The reversal of 1445541020 is 201455441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445541023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25727 + ... + 59606.

Almost surely, 2^1445541020 is an apocalyptic number.

1445541020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1445541020 is an abundant number, since it is smaller than the sum of its proper divisors (2367864772).

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

1445541020 is a wasteful number, since it uses less digits than its factorization.

1445541020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85371 (or 85358 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1445541020 is about 38020.2711720998. The cubic root of 1445541020 is about 1130.6897973323.

Adding to 1445541020 its reverse (201455441), we get a palindrome (1646996461).

The spelling of 1445541020 in words is "one billion, four hundred forty-five million, five hundred forty-one thousand, twenty".