73890130 has 8 divisors (see below), whose sum is σ = 133002252. Its totient is φ = 29556048.

The previous prime is 73890121. The next prime is 73890137. The reversal of 73890130 is 3109837.

It can be written as a sum of positive squares in 2 ways, for example, as 70610409 + 3279721 = 8403^2 + 1811^2 .

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

It is a super-2 number, since 2×73890130² = 10919502622833800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 73890092 and 73890101.

It is not an unprimeable number, because it can be changed into a prime (73890137) 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, 3694497 + ... + 3694516.

Almost surely, 2^73890130 is an apocalyptic number.

73890130 is a deficient number, since it is larger than the sum of its proper divisors (59112122).

73890130 is a wasteful number, since it uses less digits than its factorization.

73890130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7389020.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 73890130 is about 8595.9368308521. The cubic root of 73890130 is about 419.6257626320.

Adding to 73890130 its reverse (3109837), we get a palindrome (76999967).

The spelling of 73890130 in words is "seventy-three million, eight hundred ninety thousand, one hundred thirty".