169940652 has 48 divisors (see below), whose sum is σ = 472883712. Its totient is φ = 46442880.

The previous prime is 169940633. The next prime is 169940657. The reversal of 169940652 is 256049961.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (169940657) 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, 42049 + ... + 45912.

It is an arithmetic number, because the mean of its divisors is an integer number (9851744).

Almost surely, 2^169940652 is an apocalyptic number.

169940652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

169940652 is an abundant number, since it is smaller than the sum of its proper divisors (302943060).

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

169940652 is a wasteful number, since it uses less digits than its factorization.

169940652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87998 (or 87996 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 169940652 is about 13036.1287198309. The cubic root of 169940652 is about 553.9013539296.

The spelling of 169940652 in words is "one hundred sixty-nine million, nine hundred forty thousand, six hundred fifty-two".