161407488 has 160 divisors (see below), whose sum is σ = 482594112. Its totient is φ = 47513600.

The previous prime is 161407487. The next prime is 161407511. The reversal of 161407488 is 884704161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161407481) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 692620 + ... + 692852.

Almost surely, 2^161407488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161407488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241297056).

161407488 is an abundant number, since it is smaller than the sum of its proper divisors (321186624).

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

161407488 is a wasteful number, since it uses less digits than its factorization.

161407488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306 (or 290 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 161407488 is about 12704.6246697807. The cubic root of 161407488 is about 544.4707574430.

The spelling of 161407488 in words is "one hundred sixty-one million, four hundred seven thousand, four hundred eighty-eight".