146687820 has 48 divisors (see below), whose sum is σ = 411307008. Its totient is φ = 39061440.

The previous prime is 146687819. The next prime is 146687861. The reversal of 146687820 is 28786641.

146687820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58227 + ... + 60693.

It is an arithmetic number, because the mean of its divisors is an integer number (8568896).

Almost surely, 2^146687820 is an apocalyptic number.

146687820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146687820 is an abundant number, since it is smaller than the sum of its proper divisors (264619188).

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

146687820 is a wasteful number, since it uses less digits than its factorization.

146687820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3470 (or 3468 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 146687820 is about 12111.4747244091. The cubic root of 146687820 is about 527.3893451024.

The spelling of 146687820 in words is "one hundred forty-six million, six hundred eighty-seven thousand, eight hundred twenty".