40377240 has 96 divisors (see below), whose sum is σ = 133520400. Its totient is φ = 10579200.

The previous prime is 40377229. The next prime is 40377247. The reversal of 40377240 is 4277304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40377247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20290 + ... + 22190.

Almost surely, 2^40377240 is an apocalyptic number.

40377240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40377240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66760200).

40377240 is an abundant number, since it is smaller than the sum of its proper divisors (93143160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40377240 is a wasteful number, since it uses less digits than its factorization.

40377240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977 (or 1970 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 40377240 is about 6354.3087743672. The cubic root of 40377240 is about 343.0669459946.

The spelling of 40377240 in words is "forty million, three hundred seventy-seven thousand, two hundred forty".