1445825380 has 12 divisors (see below), whose sum is σ = 3036233340. Its totient is φ = 578330144.

The previous prime is 1445825369. The next prime is 1445825393. The reversal of 1445825380 is 835285441.

It can be written as a sum of positive squares in 2 ways, for example, as 613156644 + 832668736 = 24762^2 + 28856^2 .

It is a super-2 number, since 2×1445825380² = 4180822058904288800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36145615 + ... + 36145654.

It is an arithmetic number, because the mean of its divisors is an integer number (253019445).

Almost surely, 2^1445825380 is an apocalyptic number.

1445825380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1445825380 is an abundant number, since it is smaller than the sum of its proper divisors (1590407960).

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

1445825380 is a wasteful number, since it uses less digits than its factorization.

1445825380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72291278 (or 72291276 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The square root of 1445825380 is about 38024.0105722687. The cubic root of 1445825380 is about 1130.7639337896.

The spelling of 1445825380 in words is "one billion, four hundred forty-five million, eight hundred twenty-five thousand, three hundred eighty".