303397397940 has 96 divisors (see below), whose sum is σ = 1045554128640. Its totient is φ = 64013515776.

The previous prime is 303397397923. The next prime is 303397397951. The reversal of 303397397940 is 49793793303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27778185 + ... + 27789104.

It is an arithmetic number, because the mean of its divisors is an integer number (10891188840).

Almost surely, 2^303397397940 is an apocalyptic number.

303397397940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

303397397940 is an abundant number, since it is smaller than the sum of its proper divisors (742156730700).

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

303397397940 is a wasteful number, since it uses less digits than its factorization.

303397397940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55567321 (or 55567319 counting only the distinct ones).

The product of its (nonzero) digits is 11573604, while the sum is 57.

The spelling of 303397397940 in words is "three hundred three billion, three hundred ninety-seven million, three hundred ninety-seven thousand, nine hundred forty".