40212797 has 16 divisors (see below), whose sum is σ = 44390400. Its totient is φ = 36281520.

The previous prime is 40212793. The next prime is 40212833. The reversal of 40212797 is 79721204.

It is a cyclic number.

It is not a de Polignac number, because 40212797 - 2² = 40212793 is a prime.

It is a Duffinian 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 15 ways as a sum of consecutive naturals, for example, 38954 + ... + 39972.

It is an arithmetic number, because the mean of its divisors is an integer number (2774400).

Almost surely, 2^40212797 is an apocalyptic number.

It is an amenable number.

40212797 is a deficient number, since it is larger than the sum of its proper divisors (4177603).

40212797 is a wasteful number, since it uses less digits than its factorization.

40212797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 40212797 is about 6341.3560852550. The cubic root of 40212797 is about 342.6005799761.

The spelling of 40212797 in words is "forty million, two hundred twelve thousand, seven hundred ninety-seven".