40102430252 has 24 divisors (see below), whose sum is σ = 73985495136. Its totient is φ = 18981692928.

The previous prime is 40102430233. The next prime is 40102430281. The reversal of 40102430252 is 25203420104.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

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, 2237963 + ... + 2255810.

It is an arithmetic number, because the mean of its divisors is an integer number (3082728964).

Almost surely, 2^40102430252 is an apocalyptic number.

It is an amenable number.

40102430252 is a deficient number, since it is larger than the sum of its proper divisors (33883064884).

40102430252 is a wasteful number, since it uses less digits than its factorization.

40102430252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4493897 (or 4493895 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 40102430252 its reverse (25203420104), we get a palindrome (65305850356).

The spelling of 40102430252 in words is "forty billion, one hundred two million, four hundred thirty thousand, two hundred fifty-two".