301663921940 has 12 divisors (see below), whose sum is σ = 633494236116. Its totient is φ = 120665568768.

The previous prime is 301663921921. The next prime is 301663921961. The reversal of 301663921940 is 49129366103.

It can be written as a sum of positive squares in 2 ways, for example, as 213802662544 + 87861259396 = 462388^2 + 296414^2 .

It is a super-2 number, since 2×301663921940² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 301663921891 and 301663921900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7541598029 + ... + 7541598068.

It is an arithmetic number, because the mean of its divisors is an integer number (52791186343).

Almost surely, 2^301663921940 is an apocalyptic number.

It is an amenable number.

301663921940 is an abundant number, since it is smaller than the sum of its proper divisors (331830314176).

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

301663921940 is a wasteful number, since it uses less digits than its factorization.

301663921940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15083196106 (or 15083196104 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 44.

The spelling of 301663921940 in words is "three hundred one billion, six hundred sixty-three million, nine hundred twenty-one thousand, nine hundred forty".