146640046 has 32 divisors (see below), whose sum is σ = 258148800. Its totient is φ = 62445600.

The previous prime is 146640031. The next prime is 146640071. The reversal of 146640046 is 640046641.

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, 123576 + ... + 124756.

It is an arithmetic number, because the mean of its divisors is an integer number (8067150).

Almost surely, 2^146640046 is an apocalyptic number.

146640046 is a deficient number, since it is larger than the sum of its proper divisors (111508754).

146640046 is a wasteful number, since it uses less digits than its factorization.

146640046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385 (or 1371 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 146640046 is about 12109.5023019115. The cubic root of 146640046 is about 527.3320846465.

Adding to 146640046 its reverse (640046641), we get a palindrome (786686687).

The spelling of 146640046 in words is "one hundred forty-six million, six hundred forty thousand, forty-six".