73402399 has 8 divisors (see below), whose sum is σ = 83940480. Its totient is φ = 62877336.

The previous prime is 73402369. The next prime is 73402429. The reversal of 73402399 is 99320437.

It is an interprime number because it is at equal distance from previous prime (73402369) and next prime (73402429).

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

It is a cyclic number.

It is not a de Polignac number, because 73402399 - 2¹⁷ = 73271327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73402309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18972 + ... + 22510.

It is an arithmetic number, because the mean of its divisors is an integer number (10492560).

Almost surely, 2^73402399 is an apocalyptic number.

73402399 is a deficient number, since it is larger than the sum of its proper divisors (10538081).

73402399 is a wasteful number, since it uses less digits than its factorization.

73402399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6509.

The product of its (nonzero) digits is 40824, while the sum is 37.

The square root of 73402399 is about 8567.5200028947. The cubic root of 73402399 is about 418.7004407377.

The spelling of 73402399 in words is "seventy-three million, four hundred two thousand, three hundred ninety-nine".