40352404 has 24 divisors (see below), whose sum is σ = 72601760. Its totient is φ = 19613664.

The previous prime is 40352393. The next prime is 40352449. The reversal of 40352404 is 40425304.

It is a happy number.

It is a nialpdrome in base 7.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48262 + ... + 49090.

Almost surely, 2^40352404 is an apocalyptic number.

It is an amenable number.

40352404 is a deficient number, since it is larger than the sum of its proper divisors (32249356).

40352404 is a wasteful number, since it uses less digits than its factorization.

40352404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159 (or 1157 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 40352404 is about 6352.3542092676. The cubic root of 40352404 is about 342.9965915224.

Adding to 40352404 its reverse (40425304), we get a palindrome (80777708).

Subtracting 40352404 from its reverse (40425304), we obtain a square (72900 = 270²).

The spelling of 40352404 in words is "forty million, three hundred fifty-two thousand, four hundred four".