40047130 has 8 divisors (see below), whose sum is σ = 72084852. Its totient is φ = 16018848.

The previous prime is 40047107. The next prime is 40047131. The reversal of 40047130 is 3174004.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 39025009 + 1022121 = 6247^2 + 1011^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 40047098 and 40047107.

It is not an unprimeable number, because it can be changed into a prime (40047131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2002347 + ... + 2002366.

Almost surely, 2^40047130 is an apocalyptic number.

40047130 is a deficient number, since it is larger than the sum of its proper divisors (32037722).

40047130 is a wasteful number, since it uses less digits than its factorization.

40047130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4004720.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 40047130 is about 6328.2801771097. The cubic root of 40047130 is about 342.1294552268.

The spelling of 40047130 in words is "forty million, forty-seven thousand, one hundred thirty".