406737040040 has 16 divisors (see below), whose sum is σ = 915158340180. Its totient is φ = 162694816000.

The previous prime is 406737040037. The next prime is 406737040117. The reversal of 406737040040 is 40040737604.

It can be written as a sum of positive squares in 2 ways, for example, as 332608265284 + 74128774756 = 576722^2 + 272266^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5084212961 + ... + 5084213040.

Almost surely, 2^406737040040 is an apocalyptic number.

406737040040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

406737040040 is an abundant number, since it is smaller than the sum of its proper divisors (508421300140).

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

406737040040 is a wasteful number, since it uses less digits than its factorization.

406737040040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10168426012 (or 10168426008 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 35.

Adding to 406737040040 its reverse (40040737604), we get a palindrome (446777777644).

The spelling of 406737040040 in words is "four hundred six billion, seven hundred thirty-seven million, forty thousand, forty".