145882020 has 24 divisors (see below), whose sum is σ = 408469824. Its totient is φ = 38901856.

The previous prime is 145881997. The next prime is 145882021. The reversal of 145882020 is 20288541.

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

It is not an unprimeable number, because it can be changed into a prime (145882021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1215624 + ... + 1215743.

It is an arithmetic number, because the mean of its divisors is an integer number (17019576).

Almost surely, 2^145882020 is an apocalyptic number.

145882020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145882020 is an abundant number, since it is smaller than the sum of its proper divisors (262587804).

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

145882020 is a wasteful number, since it uses less digits than its factorization.

145882020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2431379 (or 2431377 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 145882020 is about 12078.1629397852. The cubic root of 145882020 is about 526.4218690006.

The spelling of 145882020 in words is "one hundred forty-five million, eight hundred eighty-two thousand, twenty".