146442020 has 24 divisors (see below), whose sum is σ = 307831104. Its totient is φ = 58519136.

The previous prime is 146442017. The next prime is 146442053. The reversal of 146442020 is 20244641.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21467 + ... + 27453.

It is an arithmetic number, because the mean of its divisors is an integer number (12826296).

Almost surely, 2^146442020 is an apocalyptic number.

146442020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146442020 is an abundant number, since it is smaller than the sum of its proper divisors (161389084).

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

146442020 is a wasteful number, since it uses less digits than its factorization.

146442020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7219 (or 7217 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 146442020 is about 12101.3230681608. The cubic root of 146442020 is about 527.0946040317.

Adding to 146442020 its reverse (20244641), we get a palindrome (166686661).

The spelling of 146442020 in words is "one hundred forty-six million, four hundred forty-two thousand, twenty".