40213130 has 16 divisors (see below), whose sum is σ = 72584424. Its totient is φ = 16040640.

The previous prime is 40213093. The next prime is 40213171. The reversal of 40213130 is 3131204.

It can be written as a sum of positive squares in 4 ways, for example, as 29170801 + 11042329 = 5401^2 + 3323^2 .

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, 1661 + ... + 9120.

Almost surely, 2^40213130 is an apocalyptic number.

40213130 is a deficient number, since it is larger than the sum of its proper divisors (32371294).

40213130 is a wasteful number, since it uses less digits than its factorization.

40213130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11161.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 40213130 is about 6341.3823414142. The cubic root of 40213130 is about 342.6015256591.

Adding to 40213130 its reverse (3131204), we get a palindrome (43344334).

The spelling of 40213130 in words is "forty million, two hundred thirteen thousand, one hundred thirty".