72020235 has 16 divisors (see below), whose sum is σ = 131694336. Its totient is φ = 32923488.

The previous prime is 72020219. The next prime is 72020237. The reversal of 72020235 is 53202027.

It is not a de Polignac number, because 72020235 - 2⁴ = 72020219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (72020237) 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, 342849 + ... + 343058.

It is an arithmetic number, because the mean of its divisors is an integer number (8230896).

Almost surely, 2^72020235 is an apocalyptic number.

72020235 is a deficient number, since it is larger than the sum of its proper divisors (59674101).

72020235 is a wasteful number, since it uses less digits than its factorization.

72020235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685922.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 72020235 is about 8486.4736492845. The cubic root of 72020235 is about 416.0557336416.

The spelling of 72020235 in words is "seventy-two million, twenty thousand, two hundred thirty-five".