1445020000 has 60 divisors (see below), whose sum is σ = 3555015156. Its totient is φ = 578000000.

The previous prime is 1445019971. The next prime is 1445020013. The reversal of 1445020000 is 205441.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 16126 + ... + 56125.

Almost surely, 2^1445020000 is an apocalyptic number.

1445020000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1445020000 is an abundant number, since it is smaller than the sum of its proper divisors (2109995156).

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

1445020000 is an frugal number, since it uses more digits than its factorization.

1445020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72281 (or 72258 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 1445020000 is about 38013.4186834070. The cubic root of 1445020000 is about 1130.5539352150.

Adding to 1445020000 its reverse (205441), we get a palindrome (1445225441).

It can be divided in two parts, 14450 and 20000, that multiplied together give a square (289000000 = 17000²).

The spelling of 1445020000 in words is "one billion, four hundred forty-five million, twenty thousand".