40103742 has 16 divisors (see below), whose sum is σ = 91665792. Its totient is φ = 11458200.

The previous prime is 40103741. The next prime is 40103759. The reversal of 40103742 is 24730104.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40103741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477384 + ... + 477467.

It is an arithmetic number, because the mean of its divisors is an integer number (5729112).

Almost surely, 2^40103742 is an apocalyptic number.

40103742 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

40103742 is an abundant number, since it is smaller than the sum of its proper divisors (51562050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40103742 is a wasteful number, since it uses less digits than its factorization.

40103742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954863.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 40103742 is about 6332.7515346806. The cubic root of 40103742 is about 342.2905946406.

Adding to 40103742 its reverse (24730104), we get a palindrome (64833846).

The spelling of 40103742 in words is "forty million, one hundred three thousand, seven hundred forty-two".