40534454 has 4 divisors (see below), whose sum is σ = 60801684. Its totient is φ = 20267226.

The previous prime is 40534451. The next prime is 40534469. The reversal of 40534454 is 45443504.

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

It is a super-2 number, since 2×40534454² = 3286083922156232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40534451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10133612 + ... + 10133615.

It is an arithmetic number, because the mean of its divisors is an integer number (15200421).

Almost surely, 2^40534454 is an apocalyptic number.

40534454 is a deficient number, since it is larger than the sum of its proper divisors (20267230).

40534454 is a wasteful number, since it uses less digits than its factorization.

40534454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20267229.

The product of its (nonzero) digits is 19200, while the sum is 29.

The square root of 40534454 is about 6366.6674171029. The cubic root of 40534454 is about 343.5116278419.

Adding to 40534454 its reverse (45443504), we get a palindrome (85977958).

The spelling of 40534454 in words is "forty million, five hundred thirty-four thousand, four hundred fifty-four".