401384877 has 8 divisors (see below), whose sum is σ = 536593440. Its totient is φ = 266883120.

The previous prime is 401384839. The next prime is 401384881. The reversal of 401384877 is 778483104.

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

It is not a de Polignac number, because 401384877 - 2¹² = 401380781 is a prime.

It is a super-2 number, since 2×401384877² = 322219638968610258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401384827) 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, 175374 + ... + 177647.

It is an arithmetic number, because the mean of its divisors is an integer number (67074180).

Almost surely, 2^401384877 is an apocalyptic number.

It is an amenable number.

401384877 is a deficient number, since it is larger than the sum of its proper divisors (135208563).

401384877 is a wasteful number, since it uses less digits than its factorization.

401384877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353403.

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 401384877 is about 20034.5920098214. The cubic root of 401384877 is about 737.6556420337.

The spelling of 401384877 in words is "four hundred one million, three hundred eighty-four thousand, eight hundred seventy-seven".