40409262 has 24 divisors (see below), whose sum is σ = 87670440. Its totient is φ = 13451760.

The previous prime is 40409249. The next prime is 40409263. The reversal of 40409262 is 26290404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40409263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24937 + ... + 26507.

It is an arithmetic number, because the mean of its divisors is an integer number (3652935).

Almost surely, 2^40409262 is an apocalyptic number.

40409262 is an abundant number, since it is smaller than the sum of its proper divisors (47261178).

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

40409262 is a wasteful number, since it uses less digits than its factorization.

40409262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3008 (or 3005 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 40409262 is about 6356.8279825712. The cubic root of 40409262 is about 343.1576141275.

Adding to 40409262 its reverse (26290404), we get a palindrome (66699666).

The spelling of 40409262 in words is "forty million, four hundred nine thousand, two hundred sixty-two".