40938457 has 8 divisors (see below), whose sum is σ = 47782656. Its totient is φ = 34343232.

The previous prime is 40938449. The next prime is 40938463. The reversal of 40938457 is 75483904.

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

It is not a de Polignac number, because 40938457 - 2³ = 40938449 is a prime.

It is a super-3 number, since 3×40938457³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40938427) 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, 61888 + ... + 62545.

It is an arithmetic number, because the mean of its divisors is an integer number (5972832).

Almost surely, 2^40938457 is an apocalyptic number.

40938457 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

40938457 is a deficient number, since it is larger than the sum of its proper divisors (6844199).

40938457 is a wasteful number, since it uses less digits than its factorization.

40938457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124487.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 40938457 is about 6398.3167317663. The cubic root of 40938457 is about 344.6491062307.

The spelling of 40938457 in words is "forty million, nine hundred thirty-eight thousand, four hundred fifty-seven".