72667458 has 24 divisors (see below), whose sum is σ = 157683708. Its totient is φ = 24185952.

The previous prime is 72667451. The next prime is 72667459. The reversal of 72667458 is 85476627.

It can be written as a sum of positive squares in 2 ways, for example, as 60326289 + 12341169 = 7767^2 + 3513^2 .

It is not an unprimeable number, because it can be changed into a prime (72667451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10960 + ... + 16292.

Almost surely, 2^72667458 is an apocalyptic number.

72667458 is an abundant number, since it is smaller than the sum of its proper divisors (85016250).

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

72667458 is a wasteful number, since it uses less digits than its factorization.

72667458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6098 (or 6095 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 72667458 is about 8524.5209836096. The cubic root of 72667458 is about 417.2983390299.

The spelling of 72667458 in words is "seventy-two million, six hundred sixty-seven thousand, four hundred fifty-eight".