401492 has 24 divisors (see below), whose sum is σ = 865536. Its totient is φ = 158688.

The previous prime is 401477. The next prime is 401507. The reversal of 401492 is 294104.

It is an interprime number because it is at equal distance from previous prime (401477) and next prime (401507).

It is a super-2 number, since 2×401492² = 322391652128, which contains 22 as substring.

It is a Smith number, since the sum of its digits (20) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

401492 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188 + ... + 915.

It is an arithmetic number, because the mean of its divisors is an integer number (36064).

2⁴⁰¹⁴⁹² is an apocalyptic number.

It is an amenable number.

401492 is an abundant number, since it is smaller than the sum of its proper divisors (464044).

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

401492 is a wasteful number, since it uses less digits than its factorization.

401492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127 (or 1125 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 401492 is about 633.6339637362. The cubic root of 401492 is about 73.7721258903.

Adding to 401492 its reverse (294104), we get a palindrome (695596).

The spelling of 401492 in words is "four hundred one thousand, four hundred ninety-two".