146423970 has 128 divisors (see below), whose sum is σ = 486881280. Its totient is φ = 30421440.

The previous prime is 146423909. The next prime is 146423983. The reversal of 146423970 is 79324641.

146423970 is a `hidden beast` number, since 1 + 4 + 642 + 3 + 9 + 7 + 0 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17269 + ... + 24311.

It is an arithmetic number, because the mean of its divisors is an integer number (3803760).

Almost surely, 2^146423970 is an apocalyptic number.

146423970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 146423970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243440640).

146423970 is an abundant number, since it is smaller than the sum of its proper divisors (340457310).

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

146423970 is a wasteful number, since it uses less digits than its factorization.

146423970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7077 (or 7071 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 146423970 is about 12100.5772589575. The cubic root of 146423970 is about 527.0729471135.

The spelling of 146423970 in words is "one hundred forty-six million, four hundred twenty-three thousand, nine hundred seventy".