40401373480 has 32 divisors (see below), whose sum is σ = 97895637000. Its totient is φ = 14917430016.

The previous prime is 40401373469. The next prime is 40401373487. The reversal of 40401373480 is 8437310404.

It can be written as a sum of positive squares in 4 ways, for example, as 30709758564 + 9691614916 = 175242^2 + 98446^2 .

It is not an unprimeable number, because it can be changed into a prime (40401373487) 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, 38846955 + ... + 38847994.

Almost surely, 2^40401373480 is an apocalyptic number.

40401373480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40401373480 is an abundant number, since it is smaller than the sum of its proper divisors (57494263520).

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

40401373480 is a wasteful number, since it uses less digits than its factorization.

40401373480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77694973 (or 77694969 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

Adding to 40401373480 its reverse (8437310404), we get a palindrome (48838683884).

The spelling of 40401373480 in words is "forty billion, four hundred one million, three hundred seventy-three thousand, four hundred eighty".