401250280387 has 8 divisors (see below), whose sum is σ = 439026477552. Its totient is φ = 363690566400.

The previous prime is 401250280351. The next prime is 401250280439. The reversal of 401250280387 is 783082052104.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 401250280387 - 2⁷ = 401250280259 is a prime.

It is a super-2 number, since 2×401250280387² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401250280307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54116914 + ... + 54124327.

It is an arithmetic number, because the mean of its divisors is an integer number (54878309694).

Almost surely, 2^401250280387 is an apocalyptic number.

401250280387 is a deficient number, since it is larger than the sum of its proper divisors (37776197165).

401250280387 is a wasteful number, since it uses less digits than its factorization.

401250280387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108241589.

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 401250280387 in words is "four hundred one billion, two hundred fifty million, two hundred eighty thousand, three hundred eighty-seven".