146670990 has 16 divisors (see below), whose sum is σ = 352010448. Its totient is φ = 39112256.

The previous prime is 146670959. The next prime is 146671003. The reversal of 146670990 is 99076641.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 2444487 + ... + 2444546.

It is an arithmetic number, because the mean of its divisors is an integer number (22000653).

Almost surely, 2^146670990 is an apocalyptic number.

146670990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

146670990 is an abundant number, since it is smaller than the sum of its proper divisors (205339458).

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

146670990 is a wasteful number, since it uses less digits than its factorization.

146670990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4889043.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 146670990 is about 12110.7799088250. The cubic root of 146670990 is about 527.3691745975.

The spelling of 146670990 in words is "one hundred forty-six million, six hundred seventy thousand, nine hundred ninety".