40335030 has 128 divisors (see below), whose sum is σ = 114278400. Its totient is φ = 10108800.

The previous prime is 40335023. The next prime is 40335037. The reversal of 40335030 is 3053304.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40335023) and next prime (40335037).

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40334994 and 40335012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40335037) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 510531 + ... + 510609.

It is an arithmetic number, because the mean of its divisors is an integer number (892800).

Almost surely, 2^40335030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40335030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57139200).

40335030 is an abundant number, since it is smaller than the sum of its proper divisors (73943370).

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

40335030 is a wasteful number, since it uses less digits than its factorization.

40335030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 18.

The square root of 40335030 is about 6350.9865375389. The cubic root of 40335030 is about 342.9473579563.

Adding to 40335030 its reverse (3053304), we get a palindrome (43388334).

The spelling of 40335030 in words is "forty million, three hundred thirty-five thousand, thirty".