146440 has 32 divisors (see below), whose sum is σ = 377280. Its totient is φ = 50112.

The previous prime is 146437. The next prime is 146449. The reversal of 146440 is 44641.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19 + ... + 541.

It is an arithmetic number, because the mean of its divisors is an integer number (11790).

2¹⁴⁶⁴⁴⁰ is an apocalyptic number.

146440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 146440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188640).

146440 is an abundant number, since it is smaller than the sum of its proper divisors (230840).

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

146440 is a wasteful number, since it uses less digits than its factorization.

146440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 146440 is about 382.6747966616. The cubic root of 146440 is about 52.7092180465.

The spelling of 146440 in words is "one hundred forty-six thousand, four hundred forty".