40607999 has 8 divisors (see below), whose sum is σ = 42103152. Its totient is φ = 39136960.

The previous prime is 40607993. The next prime is 40608011. The reversal of 40607999 is 99970604.

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

It is not a de Polignac number, because 40607999 - 2¹² = 40603903 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 (40607993) 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, 2564 + ... + 9369.

It is an arithmetic number, because the mean of its divisors is an integer number (5262894).

Almost surely, 2^40607999 is an apocalyptic number.

40607999 is a deficient number, since it is larger than the sum of its proper divisors (1495153).

40607999 is a wasteful number, since it uses less digits than its factorization.

40607999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12057.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 40607999 is about 6372.4405842660. The cubic root of 40607999 is about 343.7192561375.

The spelling of 40607999 in words is "forty million, six hundred seven thousand, nine hundred ninety-nine".