40403054 has 4 divisors (see below), whose sum is σ = 60604584. Its totient is φ = 20201526.

The previous prime is 40403039. The next prime is 40403057. The reversal of 40403054 is 45030404.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40403057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100762 + ... + 10100765.

It is an arithmetic number, because the mean of its divisors is an integer number (15151146).

Almost surely, 2^40403054 is an apocalyptic number.

40403054 is a deficient number, since it is larger than the sum of its proper divisors (20201530).

40403054 is a wasteful number, since it uses less digits than its factorization.

40403054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20201529.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 40403054 is about 6356.3396699673. The cubic root of 40403054 is about 343.1400403382.

Adding to 40403054 its reverse (45030404), we get a palindrome (85433458).

The spelling of 40403054 in words is "forty million, four hundred three thousand, fifty-four".