40472540 has 24 divisors (see below), whose sum is σ = 85618512. Its totient is φ = 16069760.

The previous prime is 40472539. The next prime is 40472557. The reversal of 40472540 is 4527404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4646 + ... + 10125.

It is an arithmetic number, because the mean of its divisors is an integer number (3567438).

Almost surely, 2^40472540 is an apocalyptic number.

It is an amenable number.

40472540 is an abundant number, since it is smaller than the sum of its proper divisors (45145972).

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

40472540 is a wasteful number, since it uses less digits than its factorization.

40472540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14917 (or 14915 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 40472540 is about 6361.8032034951. The cubic root of 40472540 is about 343.3366407658.

Adding to 40472540 its reverse (4527404), we get a palindrome (44999944).

The spelling of 40472540 in words is "forty million, four hundred seventy-two thousand, five hundred forty".