146443740 has 48 divisors (see below), whose sum is σ = 411681312. Its totient is φ = 38895616.

The previous prime is 146443733. The next prime is 146443757. The reversal of 146443740 is 47344641.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10672 + ... + 20168.

It is an arithmetic number, because the mean of its divisors is an integer number (8576694).

Almost surely, 2^146443740 is an apocalyptic number.

146443740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146443740 is an abundant number, since it is smaller than the sum of its proper divisors (265237572).

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

146443740 is a wasteful number, since it uses less digits than its factorization.

146443740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9766 (or 9764 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 146443740 is about 12101.3941345615. The cubic root of 146443740 is about 527.0966676451.

Subtracting from 146443740 its reverse (47344641), we obtain a palindrome (99099099).

The spelling of 146443740 in words is "one hundred forty-six million, four hundred forty-three thousand, seven hundred forty".