920799450 has 72 divisors (see below), whose sum is σ = 2480868000. Its totient is φ = 244853280.

The previous prime is 920799433. The next prime is 920799469. The reversal of 920799450 is 54997029.

920799450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 920799396 and 920799405.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 167851 + ... + 173249.

It is an arithmetic number, because the mean of its divisors is an integer number (34456500).

Almost surely, 2^920799450 is an apocalyptic number.

920799450 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 920799450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1240434000).

920799450 is an abundant number, since it is smaller than the sum of its proper divisors (1560068550).

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

920799450 is a wasteful number, since it uses less digits than its factorization.

920799450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5796 (or 5788 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 920799450 is about 30344.6774575048. The cubic root of 920799450 is about 972.8704606493.

The spelling of 920799450 in words is "nine hundred twenty million, seven hundred ninety-nine thousand, four hundred fifty".