67452020 has 12 divisors (see below), whose sum is σ = 141649284. Its totient is φ = 26980800.

The previous prime is 67452013. The next prime is 67452023. The reversal of 67452020 is 2025476.

It can be written as a sum of positive squares in 2 ways, for example, as 34527376 + 32924644 = 5876^2 + 5738^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67452023) 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 3 ways as a sum of consecutive naturals, for example, 1686281 + ... + 1686320.

It is an arithmetic number, because the mean of its divisors is an integer number (11804107).

Almost surely, 2^67452020 is an apocalyptic number.

It is an amenable number.

67452020 is an abundant number, since it is smaller than the sum of its proper divisors (74197264).

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

67452020 is a wasteful number, since it uses less digits than its factorization.

67452020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3372610 (or 3372608 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 67452020 is about 8212.9178736914. The cubic root of 67452020 is about 407.0661472094.

Adding to 67452020 its reverse (2025476), we get a palindrome (69477496).

The spelling of 67452020 in words is "sixty-seven million, four hundred fifty-two thousand, twenty".