400024030 has 32 divisors (see below), whose sum is σ = 824878080. Its totient is φ = 136822560.

The previous prime is 400024021. The next prime is 400024039. The reversal of 400024030 is 30420004.

It is an interprime number because it is at equal distance from previous prime (400024021) and next prime (400024039).

It is a self number, because there is not a number n which added to its sum of digits gives 400024030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400024039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23541 + ... + 36799.

It is an arithmetic number, because the mean of its divisors is an integer number (25777440).

Almost surely, 2^400024030 is an apocalyptic number.

400024030 is an abundant number, since it is smaller than the sum of its proper divisors (424854050).

400024030 is a wasteful number, since it uses less digits than its factorization.

400024030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13704.

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 400024030 is about 20000.6007409778. The cubic root of 400024030 is about 736.8210539788.

Adding to 400024030 its reverse (30420004), we get a palindrome (430444034).

The spelling of 400024030 in words is "four hundred million, twenty-four thousand, thirty".