73654340 has 24 divisors (see below), whose sum is σ = 155214360. Its totient is φ = 29358848.

The previous prime is 73654337. The next prime is 73654363. The reversal of 73654340 is 4345637.

It can be written as a sum of positive squares in 4 ways, for example, as 48413764 + 25240576 = 6958^2 + 5024^2 .

It is a junction number, because it is equal to n+sod(n) for n = 73654297 and 73654306.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425 + ... + 12144.

It is an arithmetic number, because the mean of its divisors is an integer number (6467265).

Almost surely, 2^73654340 is an apocalyptic number.

It is an amenable number.

73654340 is an abundant number, since it is smaller than the sum of its proper divisors (81560020).

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

73654340 is a wasteful number, since it uses less digits than its factorization.

73654340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12871 (or 12869 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 32.

The square root of 73654340 is about 8582.2106709169. The cubic root of 73654340 is about 419.1789325820.

Adding to 73654340 its reverse (4345637), we get a palindrome (77999977).

The spelling of 73654340 in words is "seventy-three million, six hundred fifty-four thousand, three hundred forty".