73401988 has 48 divisors (see below), whose sum is σ = 149784768. Its totient is φ = 31363200.

The previous prime is 73401973. The next prime is 73402009. The reversal of 73401988 is 88910437.

It is a self number, because there is not a number n which added to its sum of digits gives 73401988.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90103 + ... + 90913.

It is an arithmetic number, because the mean of its divisors is an integer number (3120516).

Almost surely, 2^73401988 is an apocalyptic number.

It is an amenable number.

73401988 is an abundant number, since it is smaller than the sum of its proper divisors (76382780).

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

73401988 is a wasteful number, since it uses less digits than its factorization.

73401988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865 (or 841 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 73401988 is about 8567.4960169235. The cubic root of 73401988 is about 418.6996592637.

The spelling of 73401988 in words is "seventy-three million, four hundred one thousand, nine hundred eighty-eight".