401738 has 4 divisors (see below), whose sum is σ = 602610. Its totient is φ = 200868.

The previous prime is 401711. The next prime is 401743. The reversal of 401738 is 837104.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 284089 + 117649 = 533^2 + 343^2 .

It is a super-2 number, since 2×401738² = 322786841288, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100433 + ... + 100436.

2⁴⁰¹⁷³⁸ is an apocalyptic number.

401738 is a deficient number, since it is larger than the sum of its proper divisors (200872).

401738 is a wasteful number, since it uses less digits than its factorization.

401738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200871.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 401738 is about 633.8280523928. The cubic root of 401738 is about 73.7871898996.

The spelling of 401738 in words is "four hundred one thousand, seven hundred thirty-eight".