469161378 has 72 divisors (see below), whose sum is σ = 1220693760. Its totient is φ = 129714480.

The previous prime is 469161377. The next prime is 469161421. The reversal of 469161378 is 873161964.

It is a happy number.

It is a super-2 number, since 2×469161378² = 440224797213717768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (469161377) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 18763 + ... + 35921.

It is an arithmetic number, because the mean of its divisors is an integer number (16954080).

Almost surely, 2^469161378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 469161378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (610346880).

469161378 is an abundant number, since it is smaller than the sum of its proper divisors (751532382).

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

469161378 is a wasteful number, since it uses less digits than its factorization.

469161378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17212 (or 17202 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 469161378 is about 21660.1333790907. The cubic root of 469161378 is about 777.0353039717.

The spelling of 469161378 in words is "four hundred sixty-nine million, one hundred sixty-one thousand, three hundred seventy-eight".