169147040 has 48 divisors (see below), whose sum is σ = 400923432. Its totient is φ = 67436544.

The previous prime is 169147039. The next prime is 169147051. The reversal of 169147040 is 40741961.

It can be written as a sum of positive squares in 4 ways, for example, as 161900176 + 7246864 = 12724^2 + 2692^2 .

It is a super-2 number, since 2×169147040² = 57221442281523200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 169146988 and 169147006.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52352 + ... + 55488.

Almost surely, 2^169147040 is an apocalyptic number.

169147040 is a gapful number since it is divisible by the number (10) 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 169147040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200461716).

169147040 is an abundant number, since it is smaller than the sum of its proper divisors (231776392).

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

169147040 is a wasteful number, since it uses less digits than its factorization.

169147040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3489 (or 3481 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 169147040 is about 13005.6541550204. The cubic root of 169147040 is about 553.0377802615.

The spelling of 169147040 in words is "one hundred sixty-nine million, one hundred forty-seven thousand, forty".