146293830 has 64 divisors (see below), whose sum is σ = 395988480. Its totient is φ = 38424672.

The previous prime is 146293811. The next prime is 146293831. The reversal of 146293830 is 38392641.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146293831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14047 + ... + 22133.

It is an arithmetic number, because the mean of its divisors is an integer number (6187320).

Almost surely, 2^146293830 is an apocalyptic number.

146293830 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 146293830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197994240).

146293830 is an abundant number, since it is smaller than the sum of its proper divisors (249694650).

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

146293830 is a wasteful number, since it uses less digits than its factorization.

146293830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8170 (or 8164 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 146293830 is about 12095.1986341688. The cubic root of 146293830 is about 526.9167486327.

The spelling of 146293830 in words is "one hundred forty-six million, two hundred ninety-three thousand, eight hundred thirty".