67940532 has 90 divisors (see below), whose sum is σ = 195336834. Its totient is φ = 20576160.

The previous prime is 67940507. The next prime is 67940569. The reversal of 67940532 is 23504976.

It can be written as a sum of positive squares in only one way, i.e., 56610576 + 11329956 = 7524^2 + 3366^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 38338 + ... + 40070.

Almost surely, 2^67940532 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67940532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97668417).

67940532 is an abundant number, since it is smaller than the sum of its proper divisors (127396302).

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

67940532 is a wasteful number, since it uses less digits than its factorization.

67940532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771 (or 1749 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 67940532 is about 8242.6046854135. The cubic root of 67940532 is about 408.0464912420.

Subtracting from 67940532 its reverse (23504976), we obtain a square (44435556 = 6666²).

The spelling of 67940532 in words is "sixty-seven million, nine hundred forty thousand, five hundred thirty-two".