40140377 has 4 divisors (see below), whose sum is σ = 40624080. Its totient is φ = 39656676.

The previous prime is 40140367. The next prime is 40140389. The reversal of 40140377 is 77304104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40140377 - 2¹² = 40136281 is a prime.

It is a super-2 number, since 2×40140377² = 3222499731404258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40140307) 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, 241727 + ... + 241892.

It is an arithmetic number, because the mean of its divisors is an integer number (10156020).

Almost surely, 2^40140377 is an apocalyptic number.

It is an amenable number.

40140377 is a deficient number, since it is larger than the sum of its proper divisors (483703).

40140377 is an equidigital number, since it uses as much as digits as its factorization.

40140377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483702.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 40140377 is about 6335.6433769586. The cubic root of 40140377 is about 342.3947910643.

The spelling of 40140377 in words is "forty million, one hundred forty thousand, three hundred seventy-seven".