40492830 has 64 divisors (see below), whose sum is σ = 113799168. Its totient is φ = 9027840.

The previous prime is 40492817. The next prime is 40492853. The reversal of 40492830 is 3829404.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6259 + ... + 10961.

It is an arithmetic number, because the mean of its divisors is an integer number (1778112).

Almost surely, 2^40492830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40492830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56899584).

40492830 is an abundant number, since it is smaller than the sum of its proper divisors (73306338).

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

40492830 is a wasteful number, since it uses less digits than its factorization.

40492830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4761.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 40492830 is about 6363.3976773419. The cubic root of 40492830 is about 343.3940058882.

The spelling of 40492830 in words is "forty million, four hundred ninety-two thousand, eight hundred thirty".