842161452 has 36 divisors (see below), whose sum is σ = 2159927448. Its totient is φ = 255200000.

The previous prime is 842161451. The next prime is 842161499. The reversal of 842161452 is 254161248.

It is a happy number.

It is a super-2 number, since 2×842161452² = 1418471822469496608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (842161451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 288549 + ... + 291452.

Almost surely, 2^842161452 is an apocalyptic number.

It is an amenable number.

842161452 is an abundant number, since it is smaller than the sum of its proper divisors (1317765996).

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

842161452 is a wasteful number, since it uses less digits than its factorization.

842161452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580030 (or 580017 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 842161452 is about 29020.0181254251. The cubic root of 842161452 is about 944.3473941070.

The spelling of 842161452 in words is "eight hundred forty-two million, one hundred sixty-one thousand, four hundred fifty-two".