40788901 has 4 divisors (see below), whose sum is σ = 42104704. Its totient is φ = 39473100.

The previous prime is 40788889. The next prime is 40788907. The reversal of 40788901 is 10988704.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40788901 - 2¹³ = 40780709 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 (40788907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657855 + ... + 657916.

It is an arithmetic number, because the mean of its divisors is an integer number (10526176).

Almost surely, 2^40788901 is an apocalyptic number.

It is an amenable number.

40788901 is a deficient number, since it is larger than the sum of its proper divisors (1315803).

40788901 is a wasteful number, since it uses less digits than its factorization.

40788901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315802.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 40788901 is about 6386.6189020483. The cubic root of 40788901 is about 344.2289044586.

The spelling of 40788901 in words is "forty million, seven hundred eighty-eight thousand, nine hundred one".