40292838 has 12 divisors (see below), whose sum is σ = 87301188. Its totient is φ = 13430940.

The previous prime is 40292821. The next prime is 40292867. The reversal of 40292838 is 83829204.

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 5 ways as a sum of consecutive naturals, for example, 1119228 + ... + 1119263.

It is an arithmetic number, because the mean of its divisors is an integer number (7275099).

Almost surely, 2^40292838 is an apocalyptic number.

40292838 is an abundant number, since it is smaller than the sum of its proper divisors (47008350).

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

40292838 is a wasteful number, since it uses less digits than its factorization.

40292838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238499 (or 2238496 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 40292838 is about 6347.6639797645. The cubic root of 40292838 is about 342.8277375079.

The spelling of 40292838 in words is "forty million, two hundred ninety-two thousand, eight hundred thirty-eight".