40030455 has 24 divisors (see below), whose sum is σ = 66205296. Its totient is φ = 20653440.

The previous prime is 40030453. The next prime is 40030481. The reversal of 40030455 is 55403004.

It is a happy number.

It is not a de Polignac number, because 40030455 - 2¹ = 40030453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40030453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13027 + ... + 15803.

It is an arithmetic number, because the mean of its divisors is an integer number (2758554).

Almost surely, 2^40030455 is an apocalyptic number.

40030455 is a deficient number, since it is larger than the sum of its proper divisors (26174841).

40030455 is a wasteful number, since it uses less digits than its factorization.

40030455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2847 (or 2816 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 40030455 is about 6326.9625413780. The cubic root of 40030455 is about 342.0819628458.

Adding to 40030455 its reverse (55403004), we get a palindrome (95433459).

The spelling of 40030455 in words is "forty million, thirty thousand, four hundred fifty-five".