146533440 has 56 divisors (see below), whose sum is σ = 465246720. Its totient is φ = 39075328.

The previous prime is 146533417. The next prime is 146533447. The reversal of 146533440 is 44335641.

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

It is a junction number, because it is equal to n+sod(n) for n = 146533398 and 146533407.

It is not an unprimeable number, because it can be changed into a prime (146533447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75360 + ... + 77279.

Almost surely, 2^146533440 is an apocalyptic number.

146533440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146533440 is an abundant number, since it is smaller than the sum of its proper divisors (318713280).

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

146533440 is a wasteful number, since it uses less digits than its factorization.

146533440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152659 (or 152649 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 146533440 is about 12105.0997517575. The cubic root of 146533440 is about 527.2042650995.

The spelling of 146533440 in words is "one hundred forty-six million, five hundred thirty-three thousand, four hundred forty".