73427436 has 18 divisors (see below), whose sum is σ = 185608332. Its totient is φ = 24475800.

The previous prime is 73427423. The next prime is 73427441. The reversal of 73427436 is 63472437.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2039651 = 73427436 / (7 + 3 + 4 + 2 + 7 + 4 + 3 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 73427436.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1019790 + ... + 1019861.

It is an arithmetic number, because the mean of its divisors is an integer number (10311574).

Almost surely, 2^73427436 is an apocalyptic number.

It is an amenable number.

73427436 is an abundant number, since it is smaller than the sum of its proper divisors (112180896).

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

73427436 is a wasteful number, since it uses less digits than its factorization.

73427436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039661 (or 2039656 counting only the distinct ones).

The product of its digits is 84672, while the sum is 36.

The square root of 73427436 is about 8568.9810362726. The cubic root of 73427436 is about 418.7480405047.

The spelling of 73427436 in words is "seventy-three million, four hundred twenty-seven thousand, four hundred thirty-six".