920449028 has 12 divisors (see below), whose sum is σ = 1618881600. Its totient is φ = 457911432.

The previous prime is 920449027. The next prime is 920449031. The reversal of 920449028 is 820944029.

It is a super-2 number, since 2×920449028² = 1694452826292289568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 920448982 and 920449000.

It is not an unprimeable number, because it can be changed into a prime (920449027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 577376 + ... + 578967.

It is an arithmetic number, because the mean of its divisors is an integer number (134906800).

Almost surely, 2^920449028 is an apocalyptic number.

It is an amenable number.

920449028 is a deficient number, since it is larger than the sum of its proper divisors (698432572).

920449028 is a wasteful number, since it uses less digits than its factorization.

920449028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156546 (or 1156544 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 920449028 is about 30338.9028806251. The cubic root of 920449028 is about 972.7470322276.

The spelling of 920449028 in words is "nine hundred twenty million, four hundred forty-nine thousand, twenty-eight".