40136797 has 8 divisors (see below), whose sum is σ = 42845760. Its totient is φ = 37487520.

The previous prime is 40136777. The next prime is 40136807. The reversal of 40136797 is 79763104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40136797 - 2⁷ = 40136669 is a prime.

It is a super-2 number, since 2×40136797² = 3221924946838418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40136777) 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, 13528 + ... + 16225.

It is an arithmetic number, because the mean of its divisors is an integer number (5355720).

Almost surely, 2^40136797 is an apocalyptic number.

It is an amenable number.

40136797 is a deficient number, since it is larger than the sum of its proper divisors (2708963).

40136797 is a wasteful number, since it uses less digits than its factorization.

40136797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29843.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 40136797 is about 6335.3608421305. The cubic root of 40136797 is about 342.3846117063.

The spelling of 40136797 in words is "forty million, one hundred thirty-six thousand, seven hundred ninety-seven".