401197776 has 40 divisors (see below), whose sum is σ = 1184489664. Its totient is φ = 114627840.

The previous prime is 401197759. The next prime is 401197777. The reversal of 401197776 is 677791104.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401197777) 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, 596685 + ... + 597356.

Almost surely, 2^401197776 is an apocalyptic number.

It is an amenable number.

401197776 is an abundant number, since it is smaller than the sum of its proper divisors (783291888).

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

401197776 is a wasteful number, since it uses less digits than its factorization.

401197776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194059 (or 1194053 counting only the distinct ones).

The product of its (nonzero) digits is 74088, while the sum is 42.

The square root of 401197776 is about 20029.9220168227. The cubic root of 401197776 is about 737.5410076212.

It can be divided in two parts, 40119 and 7776, that added together give a triangular number (47895 = T₃₀₉).

The spelling of 401197776 in words is "four hundred one million, one hundred ninety-seven thousand, seven hundred seventy-six".