161410428 has 96 divisors (see below), whose sum is σ = 443985920. Its totient is φ = 50621760.

The previous prime is 161410409. The next prime is 161410429. The reversal of 161410428 is 824014161.

It is a happy number.

161410428 is a `hidden beast` number, since 1 + 614 + 1 + 0 + 42 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161410429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123225 + ... + 124527.

Almost surely, 2^161410428 is an apocalyptic number.

161410428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161410428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221992960).

161410428 is an abundant number, since it is smaller than the sum of its proper divisors (282575492).

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

161410428 is a wasteful number, since it uses less digits than its factorization.

161410428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384 (or 1376 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 161410428 is about 12704.7403751513. The cubic root of 161410428 is about 544.4740632258.

Adding to 161410428 its reverse (824014161), we get a palindrome (985424589).

The spelling of 161410428 in words is "one hundred sixty-one million, four hundred ten thousand, four hundred twenty-eight".