303021940 has 96 divisors (see below), whose sum is σ = 731566080. Its totient is φ = 104441856.

The previous prime is 303021919. The next prime is 303021973. The reversal of 303021940 is 49120303.

303021940 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×303021940² = 183644592242727200, which contains 22 as substring.

303021940 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 790989 + ... + 791371.

It is an arithmetic number, because the mean of its divisors is an integer number (7620480).

Almost surely, 2^303021940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 303021940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365783040).

303021940 is an abundant number, since it is smaller than the sum of its proper divisors (428544140).

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

303021940 is a wasteful number, since it uses less digits than its factorization.

303021940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601 (or 599 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 303021940 is about 17407.5253841550. The cubic root of 303021940 is about 671.6732071546.

The spelling of 303021940 in words is "three hundred three million, twenty-one thousand, nine hundred forty".