402190 has 16 divisors (see below), whose sum is σ = 744192. Its totient is φ = 156384.

The previous prime is 402139. The next prime is 402197. The reversal of 402190 is 91204.

It is a super-2 number, since 2×402190² = 323513592200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402197) by changing a digit.

402190 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, 174 + ... + 913.

It is an arithmetic number, because the mean of its divisors is an integer number (46512).

2⁴⁰²¹⁹⁰ is an apocalyptic number.

402190 is a deficient number, since it is larger than the sum of its proper divisors (342002).

402190 is a wasteful number, since it uses less digits than its factorization.

402190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 402190 is about 634.1845157365. The cubic root of 402190 is about 73.8148524637.

Adding to 402190 its reverse (91204), we get a palindrome (493394).

The spelling of 402190 in words is "four hundred two thousand, one hundred ninety".