401609386 has 8 divisors (see below), whose sum is σ = 604935360. Its totient is φ = 199964268.

The previous prime is 401609381. The next prime is 401609387. The reversal of 401609386 is 683906104.

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

It is a super-2 number, since 2×401609386² = 322580197846593992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401609381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419616 + ... + 420571.

It is an arithmetic number, because the mean of its divisors is an integer number (75616920).

Almost surely, 2^401609386 is an apocalyptic number.

401609386 is a deficient number, since it is larger than the sum of its proper divisors (203325974).

401609386 is a wasteful number, since it uses less digits than its factorization.

401609386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840428.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 401609386 is about 20040.1942605355. The cubic root of 401609386 is about 737.7931488443.

The spelling of 401609386 in words is "four hundred one million, six hundred nine thousand, three hundred eighty-six".