146021340 has 24 divisors (see below), whose sum is σ = 408859920. Its totient is φ = 38939008.

The previous prime is 146021329. The next prime is 146021357. The reversal of 146021340 is 43120641.

146021340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1216785 + ... + 1216904.

It is an arithmetic number, because the mean of its divisors is an integer number (17035830).

Almost surely, 2^146021340 is an apocalyptic number.

146021340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146021340 is an abundant number, since it is smaller than the sum of its proper divisors (262838580).

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

146021340 is a wasteful number, since it uses less digits than its factorization.

146021340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2433701 (or 2433699 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 146021340 is about 12083.9289968123. The cubic root of 146021340 is about 526.5893965223.

Adding to 146021340 its reverse (43120641), we get a palindrome (189141981).

The spelling of 146021340 in words is "one hundred forty-six million, twenty-one thousand, three hundred forty".