73474140 has 48 divisors (see below), whose sum is σ = 216558720. Its totient is φ = 18561600.

The previous prime is 73474129. The next prime is 73474147. The reversal of 73474140 is 4147437.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 73474098 and 73474107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73474147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31086 + ... + 33365.

It is an arithmetic number, because the mean of its divisors is an integer number (4511640).

Almost surely, 2^73474140 is an apocalyptic number.

It is an amenable number.

73474140 is an abundant number, since it is smaller than the sum of its proper divisors (143084580).

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

73474140 is a wasteful number, since it uses less digits than its factorization.

73474140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64482 (or 64480 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 73474140 is about 8571.7057812316. The cubic root of 73474140 is about 418.8368041627.

The spelling of 73474140 in words is "seventy-three million, four hundred seventy-four thousand, one hundred forty".