73872330 has 32 divisors (see below), whose sum is σ = 202621824. Its totient is φ = 16885056.

The previous prime is 73872319. The next prime is 73872373. The reversal of 73872330 is 3327837.

It is a happy number.

It is a super-2 number, since 2×73872330² = 10914242279257800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 73872291 and 73872300.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175677 + ... + 176096.

It is an arithmetic number, because the mean of its divisors is an integer number (6331932).

Almost surely, 2^73872330 is an apocalyptic number.

73872330 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

73872330 is an abundant number, since it is smaller than the sum of its proper divisors (128749494).

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

73872330 is a wasteful number, since it uses less digits than its factorization.

73872330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351790.

The product of its (nonzero) digits is 21168, while the sum is 33.

The square root of 73872330 is about 8594.9013955949. The cubic root of 73872330 is about 419.5920642277.

The spelling of 73872330 in words is "seventy-three million, eight hundred seventy-two thousand, three hundred thirty".