40003221402 has 48 divisors (see below), whose sum is σ = 90344877792. Its totient is φ = 12780361440.

The previous prime is 40003221341. The next prime is 40003221449. The reversal of 40003221402 is 20412230004.

40003221402 is a `hidden beast` number, since 40 + 0 + 0 + 3 + 221 + 402 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 403624 + ... + 492867.

It is an arithmetic number, because the mean of its divisors is an integer number (1882184954).

Almost surely, 2^40003221402 is an apocalyptic number.

40003221402 is an abundant number, since it is smaller than the sum of its proper divisors (50341656390).

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

40003221402 is a wasteful number, since it uses less digits than its factorization.

40003221402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896603 (or 896600 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 40003221402 its reverse (20412230004), we get a palindrome (60415451406).

The spelling of 40003221402 in words is "forty billion, three million, two hundred twenty-one thousand, four hundred two".