40894727 has 4 divisors (see below), whose sum is σ = 42304920. Its totient is φ = 39484536.

The previous prime is 40894709. The next prime is 40894739. The reversal of 40894727 is 72749804.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40894727 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 (40894757) 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, 705053 + ... + 705110.

It is an arithmetic number, because the mean of its divisors is an integer number (10576230).

Almost surely, 2^40894727 is an apocalyptic number.

40894727 is a deficient number, since it is larger than the sum of its proper divisors (1410193).

40894727 is a wasteful number, since it uses less digits than its factorization.

40894727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410192.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 40894727 is about 6394.8985136591. The cubic root of 40894727 is about 344.5263457417.

The spelling of 40894727 in words is "forty million, eight hundred ninety-four thousand, seven hundred twenty-seven".