73023930 has 160 divisors (see below), whose sum is σ = 229578624. Its totient is φ = 16376256.

The previous prime is 73023917. The next prime is 73023949. The reversal of 73023930 is 3932037.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 73023894 and 73023903.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1377784 + ... + 1377836.

Almost surely, 2^73023930 is an apocalyptic number.

73023930 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 73023930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114789312).

73023930 is an abundant number, since it is smaller than the sum of its proper divisors (156554694).

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

73023930 is an frugal number, since it uses more digits than its factorization.

73023930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 27.

The square root of 73023930 is about 8545.4040278971. The cubic root of 73023930 is about 417.9795820403.

Adding to 73023930 its reverse (3932037), we get a palindrome (76955967).

The spelling of 73023930 in words is "seventy-three million, twenty-three thousand, nine hundred thirty".