409281200040 has 32 divisors (see below), whose sum is σ = 1227843600480. Its totient is φ = 109141653312.

The previous prime is 409281200039. The next prime is 409281200051. The reversal of 409281200040 is 40002182904.

It is a super-2 number, since 2×409281200040² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 409281199980 and 409281200007.

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, 1705338214 + ... + 1705338453.

It is an arithmetic number, because the mean of its divisors is an integer number (38370112515).

Almost surely, 2^409281200040 is an apocalyptic number.

409281200040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

409281200040 is an abundant number, since it is smaller than the sum of its proper divisors (818562400440).

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

409281200040 is a wasteful number, since it uses less digits than its factorization.

409281200040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3410676681 (or 3410676677 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

Adding to 409281200040 its reverse (40002182904), we get a palindrome (449283382944).

The spelling of 409281200040 in words is "four hundred nine billion, two hundred eighty-one million, two hundred thousand, forty".