40212353502 has 64 divisors (see below), whose sum is σ = 94113024000. Its totient is φ = 12692018304.

The previous prime is 40212353479. The next prime is 40212353509. The reversal of 40212353502 is 20535321204.

It is a happy number.

40212353502 is a `hidden beast` number, since 4 + 0 + 2 + 123 + 535 + 0 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40212353509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2189574 + ... + 2207862.

It is an arithmetic number, because the mean of its divisors is an integer number (1470516000).

Almost surely, 2^40212353502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40212353502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47056512000).

40212353502 is an abundant number, since it is smaller than the sum of its proper divisors (53900670498).

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

40212353502 is a wasteful number, since it uses less digits than its factorization.

40212353502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20462 (or 20456 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 40212353502 its reverse (20535321204), we get a palindrome (60747674706).

It can be divided in two parts, 402123 and 53502, that added together give a square (455625 = 675²).

The spelling of 40212353502 in words is "forty billion, two hundred twelve million, three hundred fifty-three thousand, five hundred two".