40030464 has 72 divisors (see below), whose sum is σ = 108904320. Its totient is φ = 13047808.

The previous prime is 40030453. The next prime is 40030481. The reversal of 40030464 is 46403004.

It is a self number, because there is not a number n which added to its sum of digits gives 40030464.

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, 35542 + ... + 36650.

It is an arithmetic number, because the mean of its divisors is an integer number (1512560).

Almost surely, 2^40030464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40030464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54452160).

40030464 is an abundant number, since it is smaller than the sum of its proper divisors (68873856).

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

40030464 is a wasteful number, since it uses less digits than its factorization.

40030464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175 (or 1161 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 40030464 is about 6326.9632526197. The cubic root of 40030464 is about 342.0819884824.

Adding to 40030464 its reverse (46403004), we get a palindrome (86433468).

The spelling of 40030464 in words is "forty million, thirty thousand, four hundred sixty-four".