40744455 has 16 divisors (see below), whose sum is σ = 68622720. Its totient is φ = 20586528.

The previous prime is 40744453. The next prime is 40744469. The reversal of 40744455 is 55444704.

It is not a de Polignac number, because 40744455 - 2¹ = 40744453 is a prime.

It is a super-2 number, since 2×40744455² = 3320221226494050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40744453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71197 + ... + 71766.

It is an arithmetic number, because the mean of its divisors is an integer number (4288920).

Almost surely, 2^40744455 is an apocalyptic number.

40744455 is a deficient number, since it is larger than the sum of its proper divisors (27878265).

40744455 is a wasteful number, since it uses less digits than its factorization.

40744455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142990.

The product of its (nonzero) digits is 44800, while the sum is 33.

The square root of 40744455 is about 6383.1383347065. The cubic root of 40744455 is about 344.1038282901.

The spelling of 40744455 in words is "forty million, seven hundred forty-four thousand, four hundred fifty-five".