401106231890 has 256 divisors, whose sum is σ = 977027788800. Its totient is φ = 115017864192.

The previous prime is 401106231863. The next prime is 401106231913. The reversal of 401106231890 is 98132601104.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 401106231890.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 37738757 + ... + 37749383.

It is an arithmetic number, because the mean of its divisors is an integer number (3816514800).

Almost surely, 2^401106231890 is an apocalyptic number.

401106231890 is an abundant number, since it is smaller than the sum of its proper divisors (575921556910).

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

401106231890 is a wasteful number, since it uses less digits than its factorization.

401106231890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10769.

The product of its (nonzero) digits is 10368, while the sum is 35.

Adding to 401106231890 its reverse (98132601104), we get a palindrome (499238832994).

The spelling of 401106231890 in words is "four hundred one billion, one hundred six million, two hundred thirty-one thousand, eight hundred ninety".