920553830 has 32 divisors (see below), whose sum is σ = 1916538624. Its totient is φ = 311813856.

The previous prime is 920553811. The next prime is 920553839. The reversal of 920553830 is 38355029.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920553839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73412 + ... + 85031.

It is an arithmetic number, because the mean of its divisors is an integer number (59891832).

Almost surely, 2^920553830 is an apocalyptic number.

920553830 is an abundant number, since it is smaller than the sum of its proper divisors (995984794).

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

920553830 is a wasteful number, since it uses less digits than its factorization.

920553830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158540.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 920553830 is about 30340.6300198265. The cubic root of 920553830 is about 972.7839497039.

The spelling of 920553830 in words is "nine hundred twenty million, five hundred fifty-three thousand, eight hundred thirty".