400177044 has 24 divisors (see below), whose sum is σ = 1037496320. Its totient is φ = 133392312.

The previous prime is 400177039. The next prime is 400177079. The reversal of 400177044 is 440771004.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 400176999 and 400177017.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1852564 + ... + 1852779.

Almost surely, 2^400177044 is an apocalyptic number.

It is an amenable number.

400177044 is an abundant number, since it is smaller than the sum of its proper divisors (637319276).

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

400177044 is a wasteful number, since it uses less digits than its factorization.

400177044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3705356 (or 3705348 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 400177044 is about 20004.4256103493. The cubic root of 400177044 is about 736.9149896393.

The spelling of 400177044 in words is "four hundred million, one hundred seventy-seven thousand, forty-four".