980423550 has 36 divisors (see below), whose sum is σ = 2634072480. Its totient is φ = 261446160.

The previous prime is 980423533. The next prime is 980423551. The reversal of 980423550 is 55324089.

980423550 is a `hidden beast` number, since 9 + 80 + 4 + 23 + 550 = 666.

It is a super-2 number, since 2×980423550² = 1922460674789205000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (980423551) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1088910 + ... + 1089809.

It is an arithmetic number, because the mean of its divisors is an integer number (73168680).

Almost surely, 2^980423550 is an apocalyptic number.

980423550 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

980423550 is an abundant number, since it is smaller than the sum of its proper divisors (1653648930).

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

980423550 is a wasteful number, since it uses less digits than its factorization.

980423550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2178737 (or 2178729 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 980423550 is about 31311.7158584451. The cubic root of 980423550 is about 993.4314654889.

The spelling of 980423550 in words is "nine hundred eighty million, four hundred twenty-three thousand, five hundred fifty".