40409050 has 24 divisors (see below), whose sum is σ = 81994752. Its totient is φ = 14694000.

The previous prime is 40409021. The next prime is 40409087. The reversal of 40409050 is 5090404.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36186 + ... + 37285.

It is an arithmetic number, because the mean of its divisors is an integer number (3416448).

Almost surely, 2^40409050 is an apocalyptic number.

40409050 is an abundant number, since it is smaller than the sum of its proper divisors (41585702).

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

40409050 is a wasteful number, since it uses less digits than its factorization.

40409050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73494 (or 73489 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 40409050 is about 6356.8113075661. The cubic root of 40409050 is about 343.1570140213.

Adding to 40409050 its reverse (5090404), we get a palindrome (45499454).

The spelling of 40409050 in words is "forty million, four hundred nine thousand, fifty".