73423402 has 12 divisors (see below), whose sum is σ = 119259270. Its totient is φ = 33887568.

The previous prime is 73423397. The next prime is 73423409. The reversal of 73423402 is 20432437.

It can be written as a sum of positive squares in 3 ways, for example, as 15374241 + 58049161 = 3921^2 + 7619^2 .

It is a super-2 number, since 2×73423402² = 10781991922507208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (73423409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 108277 + ... + 108952.

Almost surely, 2^73423402 is an apocalyptic number.

73423402 is a deficient number, since it is larger than the sum of its proper divisors (45835868).

73423402 is a wasteful number, since it uses less digits than its factorization.

73423402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217257 (or 217244 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 73423402 is about 8568.7456491601. The cubic root of 73423402 is about 418.7403718882.

Adding to 73423402 its reverse (20432437), we get a palindrome (93855839).

The spelling of 73423402 in words is "seventy-three million, four hundred twenty-three thousand, four hundred two".