920872204390 has 32 divisors (see below), whose sum is σ = 1734770831040. Its totient is φ = 351288182784.

The previous prime is 920872204361. The next prime is 920872204391. The reversal of 920872204390 is 93402278029.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 920872204390.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920872204391) 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, 5862835 + ... + 6017854.

It is an arithmetic number, because the mean of its divisors is an integer number (54211588470).

Almost surely, 2^920872204390 is an apocalyptic number.

920872204390 is a deficient number, since it is larger than the sum of its proper divisors (813898626650).

920872204390 is a wasteful number, since it uses less digits than its factorization.

920872204390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11881056.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 920872204390 in words is "nine hundred twenty billion, eight hundred seventy-two million, two hundred four thousand, three hundred ninety".