40406190 has 32 divisors (see below), whose sum is σ = 105791616. Its totient is φ = 9795360.

The previous prime is 40406167. The next prime is 40406273. The reversal of 40406190 is 9160404.

It is a super-2 number, since 2×40406190² = 3265320380632200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40406190.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60892 + ... + 61551.

It is an arithmetic number, because the mean of its divisors is an integer number (3305988).

Almost surely, 2^40406190 is an apocalyptic number.

40406190 is an abundant number, since it is smaller than the sum of its proper divisors (65385426).

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

40406190 is a wasteful number, since it uses less digits than its factorization.

40406190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122464.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 40406190 is about 6356.5863480330. The cubic root of 40406190 is about 343.1489180443.

Adding to 40406190 its reverse (9160404), we get a palindrome (49566594).

The spelling of 40406190 in words is "forty million, four hundred six thousand, one hundred ninety".