40471816 has 32 divisors (see below), whose sum is σ = 94610880. Its totient is φ = 15768000.

The previous prime is 40471813. The next prime is 40471831. The reversal of 40471816 is 61817404.

It is not an unprimeable number, because it can be changed into a prime (40471813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32235 + ... + 33466.

It is an arithmetic number, because the mean of its divisors is an integer number (2956590).

Almost surely, 2^40471816 is an apocalyptic number.

It is an amenable number.

40471816 is an abundant number, since it is smaller than the sum of its proper divisors (54139064).

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

40471816 is a wasteful number, since it uses less digits than its factorization.

40471816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65725 (or 65721 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 40471816 is about 6361.7463011346. The cubic root of 40471816 is about 343.3345934747.

The spelling of 40471816 in words is "forty million, four hundred seventy-one thousand, eight hundred sixteen".