351542440232240 has 40 divisors (see below), whose sum is σ = 834726304900800. Its totient is φ = 137625125536256.

The previous prime is 351542440232183. The next prime is 351542440232261. The reversal of 351542440232240 is 42232044245153.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×351542440232240³ (a number of 45 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46747661165 + ... + 46747668684.

It is an arithmetic number, because the mean of its divisors is an integer number (20868157622520).

Almost surely, 2^{351542440232240} is an apocalyptic number.

It is an amenable number.

351542440232240 is an abundant number, since it is smaller than the sum of its proper divisors (483183864668560).

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

351542440232240 is a wasteful number, since it uses less digits than its factorization.

351542440232240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93495329909 (or 93495329903 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 41.

Adding to 351542440232240 its reverse (42232044245153), we get a palindrome (393774484477393).

The spelling of 351542440232240 in words is "three hundred fifty-one trillion, five hundred forty-two billion, four hundred forty million, two hundred thirty-two thousand, two hundred forty".