161484390 has 24 divisors (see below), whose sum is σ = 419859648. Its totient is φ = 43062480.

The previous prime is 161484347. The next prime is 161484443. The reversal of 161484390 is 93484161.

161484390 is a `hidden beast` number, since 1 + 614 + 8 + 4 + 39 + 0 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 897046 + ... + 897225.

It is an arithmetic number, because the mean of its divisors is an integer number (17494152).

Almost surely, 2^161484390 is an apocalyptic number.

161484390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161484390 is an abundant number, since it is smaller than the sum of its proper divisors (258375258).

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

161484390 is a wasteful number, since it uses less digits than its factorization.

161484390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794284 (or 1794281 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 161484390 is about 12707.6508450618. The cubic root of 161484390 is about 544.5572140726.

The spelling of 161484390 in words is "one hundred sixty-one million, four hundred eighty-four thousand, three hundred ninety".