72362690 has 8 divisors (see below), whose sum is σ = 130252860. Its totient is φ = 28945072.

The previous prime is 72362687. The next prime is 72362699. The reversal of 72362690 is 9626327.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 65334889 + 7027801 = 8083^2 + 2651^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×72362690² = 10472717808072200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72362690.

It is not an unprimeable number, because it can be changed into a prime (72362699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3618125 + ... + 3618144.

Almost surely, 2^72362690 is an apocalyptic number.

72362690 is a deficient number, since it is larger than the sum of its proper divisors (57890170).

72362690 is a wasteful number, since it uses less digits than its factorization.

72362690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7236276.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 72362690 is about 8506.6262407608. The cubic root of 72362690 is about 416.7141371693.

The spelling of 72362690 in words is "seventy-two million, three hundred sixty-two thousand, six hundred ninety".