146998440 has 96 divisors (see below), whose sum is σ = 502912800. Its totient is φ = 37134720.

The previous prime is 146998433. The next prime is 146998463. The reversal of 146998440 is 44899641.

146998440 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3906 + ... + 17585.

It is an arithmetic number, because the mean of its divisors is an integer number (5238675).

Almost surely, 2^146998440 is an apocalyptic number.

146998440 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 146998440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251456400).

146998440 is an abundant number, since it is smaller than the sum of its proper divisors (355914360).

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

146998440 is a wasteful number, since it uses less digits than its factorization.

146998440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21527 (or 21520 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 146998440 is about 12124.2913194958. The cubic root of 146998440 is about 527.7613418663.

The spelling of 146998440 in words is "one hundred forty-six million, nine hundred ninety-eight thousand, four hundred forty".