40160890 has 48 divisors (see below), whose sum is σ = 91749024. Its totient is φ = 12516000.

The previous prime is 40160881. The next prime is 40160891. The reversal of 40160890 is 9806104.

It is a super-2 number, since 2×40160890² = 3225794171184200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40160891) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1665 + ... + 9115.

It is an arithmetic number, because the mean of its divisors is an integer number (1911438).

Almost surely, 2^40160890 is an apocalyptic number.

40160890 is an abundant number, since it is smaller than the sum of its proper divisors (51588134).

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

40160890 is a wasteful number, since it uses less digits than its factorization.

40160890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7483 (or 7476 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 40160890 is about 6337.2620270902. The cubic root of 40160890 is about 342.4531059814.

Adding to 40160890 its reverse (9806104), we get a palindrome (49966994).

The spelling of 40160890 in words is "forty million, one hundred sixty thousand, eight hundred ninety".