40102760 has 16 divisors (see below), whose sum is σ = 90231300. Its totient is φ = 16041088.

The previous prime is 40102739. The next prime is 40102763. The reversal of 40102760 is 6720104.

It can be written as a sum of positive squares in 2 ways, for example, as 38365636 + 1737124 = 6194^2 + 1318^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (40102763) 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, 501245 + ... + 501324.

Almost surely, 2^40102760 is an apocalyptic number.

40102760 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40102760 is an abundant number, since it is smaller than the sum of its proper divisors (50128540).

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

40102760 is a wasteful number, since it uses less digits than its factorization.

40102760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002580 (or 1002576 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 40102760 is about 6332.6740007678. The cubic root of 40102760 is about 342.2878007857.

Adding to 40102760 its reverse (6720104), we get a palindrome (46822864).

The spelling of 40102760 in words is "forty million, one hundred two thousand, seven hundred sixty".