40030231252 has 48 divisors (see below), whose sum is σ = 78099436800. Its totient is φ = 17800248960.

The previous prime is 40030231249. The next prime is 40030231271. The reversal of 40030231252 is 25213203004.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326058 + ... + 431710.

It is an arithmetic number, because the mean of its divisors is an integer number (1627071600).

Almost surely, 2^40030231252 is an apocalyptic number.

It is an amenable number.

40030231252 is a deficient number, since it is larger than the sum of its proper divisors (38069205548).

40030231252 is a wasteful number, since it uses less digits than its factorization.

40030231252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105856 (or 105854 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 40030231252 its reverse (25213203004), we get a palindrome (65243434256).

The spelling of 40030231252 in words is "forty billion, thirty million, two hundred thirty-one thousand, two hundred fifty-two".