73420130 has 24 divisors (see below), whose sum is σ = 153733788. Its totient is φ = 25172448.

The previous prime is 73420079. The next prime is 73420147. The reversal of 73420130 is 3102437.

It can be written as a sum of positive squares in 2 ways, for example, as 69039481 + 4380649 = 8309^2 + 2093^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74429 + ... + 75408.

Almost surely, 2^73420130 is an apocalyptic number.

73420130 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

73420130 is an abundant number, since it is smaller than the sum of its proper divisors (80313658).

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

73420130 is a wasteful number, since it uses less digits than its factorization.

73420130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149858 (or 149851 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 73420130 is about 8568.5547206049. The cubic root of 73420130 is about 418.7341516242.

Adding to 73420130 its reverse (3102437), we get a palindrome (76522567).

The spelling of 73420130 in words is "seventy-three million, four hundred twenty thousand, one hundred thirty".