40071370 has 16 divisors (see below), whose sum is σ = 74078568. Its totient is φ = 15595200.

The previous prime is 40071347. The next prime is 40071371. The reversal of 40071370 is 7317004.

It can be written as a sum of positive squares in 4 ways, for example, as 40056241 + 15129 = 6329^2 + 123^2 .

It is not an unprimeable number, because it can be changed into a prime (40071371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53781 + ... + 54520.

Almost surely, 2^40071370 is an apocalyptic number.

40071370 is a deficient number, since it is larger than the sum of its proper divisors (34007198).

40071370 is a wasteful number, since it uses less digits than its factorization.

40071370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108345.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 40071370 is about 6330.1950996790. The cubic root of 40071370 is about 342.1984701208.

Adding to 40071370 its reverse (7317004), we get a palindrome (47388374).

The spelling of 40071370 in words is "forty million, seventy-one thousand, three hundred seventy".