873220438 has 16 divisors (see below), whose sum is σ = 1372515840. Its totient is φ = 415874536.

The previous prime is 873220433. The next prime is 873220463. The reversal of 873220438 is 834022378.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 873220397 and 873220406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (873220433) 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, 28720 + ... + 50707.

It is an arithmetic number, because the mean of its divisors is an integer number (85782240).

Almost surely, 2^873220438 is an apocalyptic number.

873220438 is a deficient number, since it is larger than the sum of its proper divisors (499295402).

873220438 is a wasteful number, since it uses less digits than its factorization.

873220438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79691.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 873220438 is about 29550.3035178998. The cubic root of 873220438 is about 955.8167361400.

The spelling of 873220438 in words is "eight hundred seventy-three million, two hundred twenty thousand, four hundred thirty-eight".