40402422432 has 48 divisors (see below), whose sum is σ = 117840401280. Its totient is φ = 13467473856.

The previous prime is 40402422407. The next prime is 40402422457. The reversal of 40402422432 is 23422420404.

40402422432 is a `hidden beast` number, since 4 + 0 + 402 + 4 + 224 + 32 = 666.

It is an interprime number because it is at equal distance from previous prime (40402422407) and next prime (40402422457).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 40402422396 and 40402422405.

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, 23380168 + ... + 23381895.

It is an arithmetic number, because the mean of its divisors is an integer number (2455008360).

Almost surely, 2^40402422432 is an apocalyptic number.

It is an amenable number.

40402422432 is an abundant number, since it is smaller than the sum of its proper divisors (77437978848).

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

40402422432 is a wasteful number, since it uses less digits than its factorization.

40402422432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46762082 (or 46762068 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

Adding to 40402422432 its reverse (23422420404), we get a palindrome (63824842836).

The spelling of 40402422432 in words is "forty billion, four hundred two million, four hundred twenty-two thousand, four hundred thirty-two".