73743740 has 24 divisors (see below), whose sum is σ = 176985312. Its totient is φ = 25283520.

The previous prime is 73743721. The next prime is 73743743. The reversal of 73743740 is 4734737.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 73743740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73743743) 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, 263231 + ... + 263510.

It is an arithmetic number, because the mean of its divisors is an integer number (7374388).

Almost surely, 2^73743740 is an apocalyptic number.

73743740 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

73743740 is an abundant number, since it is smaller than the sum of its proper divisors (103241572).

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

73743740 is a wasteful number, since it uses less digits than its factorization.

73743740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526757 (or 526755 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 35.

The square root of 73743740 is about 8587.4175396332. The cubic root of 73743740 is about 419.3484606996.

The spelling of 73743740 in words is "seventy-three million, seven hundred forty-three thousand, seven hundred forty".