401779244 has 24 divisors (see below), whose sum is σ = 740812800. Its totient is φ = 190138320.

The previous prime is 401779243. The next prime is 401779267. The reversal of 401779244 is 442977104.

It is a super-2 number, since 2×401779244² = 322853121818423072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 401779198 and 401779207.

It is not an unprimeable number, because it can be changed into a prime (401779243) 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, 116789 + ... + 120179.

It is an arithmetic number, because the mean of its divisors is an integer number (30867200).

Almost surely, 2^401779244 is an apocalyptic number.

It is an amenable number.

401779244 is a deficient number, since it is larger than the sum of its proper divisors (339033556).

401779244 is a wasteful number, since it uses less digits than its factorization.

401779244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4973 (or 4971 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 401779244 is about 20044.4317454998. The cubic root of 401779244 is about 737.8971490740.

The spelling of 401779244 in words is "four hundred one million, seven hundred seventy-nine thousand, two hundred forty-four".