40431460 has 12 divisors (see below), whose sum is σ = 84906108. Its totient is φ = 16172576.

The previous prime is 40431439. The next prime is 40431467. The reversal of 40431460 is 6413404.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8259876 + 32171584 = 2874^2 + 5672^2 .

It is not an unprimeable number, because it can be changed into a prime (40431467) 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, 1010767 + ... + 1010806.

It is an arithmetic number, because the mean of its divisors is an integer number (7075509).

Almost surely, 2^40431460 is an apocalyptic number.

It is an amenable number.

40431460 is an abundant number, since it is smaller than the sum of its proper divisors (44474648).

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

40431460 is a wasteful number, since it uses less digits than its factorization.

40431460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021582 (or 2021580 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 40431460 is about 6358.5737394482. The cubic root of 40431460 is about 343.2204381596.

Adding to 40431460 its reverse (6413404), we get a palindrome (46844864).

The spelling of 40431460 in words is "forty million, four hundred thirty-one thousand, four hundred sixty".