67452040 has 32 divisors (see below), whose sum is σ = 154635480. Its totient is φ = 26470912.

The previous prime is 67452023. The next prime is 67452043. The reversal of 67452040 is 4025476.

It can be written as a sum of positive squares in 4 ways, for example, as 66487716 + 964324 = 8154^2 + 982^2 .

It is not an unprimeable number, because it can be changed into a prime (67452043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13789 + ... + 18028.

Almost surely, 2^67452040 is an apocalyptic number.

It is an amenable number.

67452040 is an abundant number, since it is smaller than the sum of its proper divisors (87183440).

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

67452040 is a wasteful number, since it uses less digits than its factorization.

67452040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31881 (or 31877 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 67452040 is about 8212.9190912854. The cubic root of 67452040 is about 407.0661874421.

The spelling of 67452040 in words is "sixty-seven million, four hundred fifty-two thousand, forty".