333997980 has 96 divisors (see below), whose sum is σ = 1011419136. Its totient is φ = 82031616.

The previous prime is 333997967. The next prime is 333997981. The reversal of 333997980 is 89799333.

It is a happy number.

It is a super-2 number, since 2×333997980² = 223109301288160800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (333997981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44457 + ... + 51423.

It is an arithmetic number, because the mean of its divisors is an integer number (10535616).

Almost surely, 2^333997980 is an apocalyptic number.

333997980 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 333997980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (505709568).

333997980 is an abundant number, since it is smaller than the sum of its proper divisors (677421156).

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

333997980 is a wasteful number, since it uses less digits than its factorization.

333997980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7043 (or 7041 counting only the distinct ones).

The product of its (nonzero) digits is 1102248, while the sum is 51.

The square root of 333997980 is about 18275.6116176723. The cubic root of 333997980 is about 693.8218086533.

The spelling of 333997980 in words is "three hundred thirty-three million, nine hundred ninety-seven thousand, nine hundred eighty".