40212798 has 16 divisors (see below), whose sum is σ = 80518656. Its totient is φ = 13388760.

The previous prime is 40212793. The next prime is 40212833. The reversal of 40212798 is 89721204.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40212791) 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, 2565 + ... + 9327.

It is an arithmetic number, because the mean of its divisors is an integer number (5032416).

Almost surely, 2^40212798 is an apocalyptic number.

40212798 is an abundant number, since it is smaller than the sum of its proper divisors (40305858).

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

40212798 is a wasteful number, since it uses less digits than its factorization.

40212798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7759.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 40212798 is about 6341.3561641024. The cubic root of 40212798 is about 342.6005828160.

The spelling of 40212798 in words is "forty million, two hundred twelve thousand, seven hundred ninety-eight".