40695457 has 8 divisors (see below), whose sum is σ = 44533152. Its totient is φ = 36880800.

The previous prime is 40695443. The next prime is 40695491. The reversal of 40695457 is 75459604.

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

It is a de Polignac number, because none of the positive numbers 2^k-40695457 is a prime.

It is a super-2 number, since 2×40695457² = 3312240440877698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40695407) 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, 1948 + ... + 9229.

It is an arithmetic number, because the mean of its divisors is an integer number (5566644).

Almost surely, 2^40695457 is an apocalyptic number.

It is an amenable number.

40695457 is a deficient number, since it is larger than the sum of its proper divisors (3837695).

40695457 is a wasteful number, since it uses less digits than its factorization.

40695457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11519.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 40695457 is about 6379.2990994309. The cubic root of 40695457 is about 343.9658368137.

The spelling of 40695457 in words is "forty million, six hundred ninety-five thousand, four hundred fifty-seven".