146215380 has 24 divisors (see below), whose sum is σ = 409403232. Its totient is φ = 38990752.

The previous prime is 146215367. The next prime is 146215387. The reversal of 146215380 is 83512641.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146215387) 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, 1218402 + ... + 1218521.

It is an arithmetic number, because the mean of its divisors is an integer number (17058468).

Almost surely, 2^146215380 is an apocalyptic number.

146215380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146215380 is an abundant number, since it is smaller than the sum of its proper divisors (263187852).

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

146215380 is a wasteful number, since it uses less digits than its factorization.

146215380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2436935 (or 2436933 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 146215380 is about 12091.9551768934. The cubic root of 146215380 is about 526.8225455027.

The spelling of 146215380 in words is "one hundred forty-six million, two hundred fifteen thousand, three hundred eighty".