40288190 has 16 divisors (see below), whose sum is σ = 74479392. Its totient is φ = 15679584.

The previous prime is 40288139. The next prime is 40288217. The reversal of 40288190 is 9188204.

It is a happy number.

It is a super-2 number, since 2×40288190² = 3246276506952200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54074 + ... + 54813.

It is an arithmetic number, because the mean of its divisors is an integer number (4654962).

Almost surely, 2^40288190 is an apocalyptic number.

40288190 is a deficient number, since it is larger than the sum of its proper divisors (34191202).

40288190 is a wasteful number, since it uses less digits than its factorization.

40288190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108931.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 40288190 is about 6347.2978502667. The cubic root of 40288190 is about 342.8145546473.

The spelling of 40288190 in words is "forty million, two hundred eighty-eight thousand, one hundred ninety".