401780000352 has 48 divisors (see below), whose sum is σ = 1110181584960. Its totient is φ = 126877894272.

The previous prime is 401780000327. The next prime is 401780000437. The reversal of 401780000352 is 253000087104.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×401780000352² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110135238 + ... + 110138885.

It is an arithmetic number, because the mean of its divisors is an integer number (23128783020).

Almost surely, 2^401780000352 is an apocalyptic number.

It is an amenable number.

401780000352 is an abundant number, since it is smaller than the sum of its proper divisors (708401584608).

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

401780000352 is a wasteful number, since it uses less digits than its factorization.

401780000352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220274155 (or 220274147 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

Adding to 401780000352 its reverse (253000087104), we get a palindrome (654780087456).

The spelling of 401780000352 in words is "four hundred one billion, seven hundred eighty million, three hundred fifty-two", and thus it is an aban number.