40235004 has 36 divisors (see below), whose sum is σ = 106129296. Its totient is φ = 12828288.

The previous prime is 40234973. The next prime is 40235009. The reversal of 40235004 is 40053204.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40235009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23469 + ... + 25124.

It is an arithmetic number, because the mean of its divisors is an integer number (2948036).

Almost surely, 2^40235004 is an apocalyptic number.

It is an amenable number.

40235004 is an abundant number, since it is smaller than the sum of its proper divisors (65894292).

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

40235004 is a wasteful number, since it uses less digits than its factorization.

40235004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48626 (or 48621 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 40235004 is about 6343.1068097581. The cubic root of 40235004 is about 342.6636339587.

Adding to 40235004 its reverse (40053204), we get a palindrome (80288208).

The spelling of 40235004 in words is "forty million, two hundred thirty-five thousand, four".