40730190 has 16 divisors (see below), whose sum is σ = 97752528. Its totient is φ = 10861376.

The previous prime is 40730189. The next prime is 40730191. The reversal of 40730190 is 9103704.

It is an interprime number because it is at equal distance from previous prime (40730189) and next prime (40730191).

It is a super-2 number, since 2×40730190² = 3317896754872200, 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 40730190.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40730191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 678807 + ... + 678866.

It is an arithmetic number, because the mean of its divisors is an integer number (6109533).

Almost surely, 2^40730190 is an apocalyptic number.

40730190 is an abundant number, since it is smaller than the sum of its proper divisors (57022338).

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

40730190 is a wasteful number, since it uses less digits than its factorization.

40730190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357683.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 40730190 is about 6382.0208398281. The cubic root of 40730190 is about 344.0636656546.

Adding to 40730190 its reverse (9103704), we get a palindrome (49833894).

The spelling of 40730190 in words is "forty million, seven hundred thirty thousand, one hundred ninety".