161464438 has 8 divisors (see below), whose sum is σ = 246167280. Its totient is φ = 79408680.

The previous prime is 161464409. The next prime is 161464463. The reversal of 161464438 is 834464161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 161464397 and 161464406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661618 + ... + 661861.

It is an arithmetic number, because the mean of its divisors is an integer number (30770910).

Almost surely, 2^161464438 is an apocalyptic number.

161464438 is a deficient number, since it is larger than the sum of its proper divisors (84702842).

161464438 is a wasteful number, since it uses less digits than its factorization.

161464438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323542.

The product of its digits is 55296, while the sum is 37.

The square root of 161464438 is about 12706.8657819306. The cubic root of 161464438 is about 544.5347857891.

The spelling of 161464438 in words is "one hundred sixty-one million, four hundred sixty-four thousand, four hundred thirty-eight".