73840836 has 24 divisors (see below), whose sum is σ = 176498784. Its totient is φ = 24013120.

The previous prime is 73840829. The next prime is 73840841. The reversal of 73840836 is 63804837.

It is a super-2 number, since 2×73840836² = 10904938122357792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 73840794 and 73840803.

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, 74550 + ... + 75533.

It is an arithmetic number, because the mean of its divisors is an integer number (7354116).

Almost surely, 2^73840836 is an apocalyptic number.

It is an amenable number.

73840836 is an abundant number, since it is smaller than the sum of its proper divisors (102657948).

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

73840836 is a wasteful number, since it uses less digits than its factorization.

73840836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150131 (or 150129 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 73840836 is about 8593.0690675684. The cubic root of 73840836 is about 419.5324275055.

The spelling of 73840836 in words is "seventy-three million, eight hundred forty thousand, eight hundred thirty-six".