400302252124 has 36 divisors (see below), whose sum is σ = 718914141232. Its totient is φ = 195029429760.

The previous prime is 400302252073. The next prime is 400302252127. The reversal of 400302252124 is 421252203004.

It is a super-2 number, since 2×400302252124² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400302252127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5497684 + ... + 5570020.

Almost surely, 2^400302252124 is an apocalyptic number.

It is an amenable number.

400302252124 is a deficient number, since it is larger than the sum of its proper divisors (318611889108).

400302252124 is a wasteful number, since it uses less digits than its factorization.

400302252124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73246 (or 73203 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 400302252124 its reverse (421252203004), we get a palindrome (821554455128).

The spelling of 400302252124 in words is "four hundred billion, three hundred two million, two hundred fifty-two thousand, one hundred twenty-four".