72028942 has 4 divisors (see below), whose sum is σ = 108043416. Its totient is φ = 36014470.

The previous prime is 72028933. The next prime is 72028987. The reversal of 72028942 is 24982027.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 72028898 and 72028907.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18007234 + ... + 18007237.

It is an arithmetic number, because the mean of its divisors is an integer number (27010854).

Almost surely, 2^72028942 is an apocalyptic number.

72028942 is a deficient number, since it is larger than the sum of its proper divisors (36014474).

72028942 is a wasteful number, since it uses less digits than its factorization.

72028942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36014473.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 72028942 is about 8486.9866265949. The cubic root of 72028942 is about 416.0724995375.

The spelling of 72028942 in words is "seventy-two million, twenty-eight thousand, nine hundred forty-two".