40213450 has 24 divisors (see below), whose sum is σ = 76822092. Its totient is φ = 15649920.

The previous prime is 40213447. The next prime is 40213469. The reversal of 40213450 is 5431204.

It can be written as a sum of positive squares in 6 ways, for example, as 12766329 + 27447121 = 3573^2 + 5239^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9019 + ... + 12718.

Almost surely, 2^40213450 is an apocalyptic number.

40213450 is a deficient number, since it is larger than the sum of its proper divisors (36608642).

40213450 is a wasteful number, since it uses less digits than its factorization.

40213450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21786 (or 21781 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 40213450 is about 6341.4075724558. The cubic root of 40213450 is about 342.6024344186.

Adding to 40213450 its reverse (5431204), we get a palindrome (45644654).

The spelling of 40213450 in words is "forty million, two hundred thirteen thousand, four hundred fifty".