4015420723242 has 32 divisors (see below), whose sum is σ = 9023417366400. Its totient is φ = 1323434543904.

The previous prime is 4015420723201. The next prime is 4015420723243. The reversal of 4015420723242 is 2423270245104.

4015420723242 is a `hidden beast` number, since 4 + 0 + 1 + 542 + 0 + 72 + 3 + 2 + 42 = 666.

It is a super-2 number, since 2×4015420723242² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4015420723197 and 4015420723206.

It is not an unprimeable number, because it can be changed into a prime (4015420723243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 417745998 + ... + 417755609.

It is an arithmetic number, because the mean of its divisors is an integer number (281981792700).

Almost surely, 2^{4015420723242} is an apocalyptic number.

4015420723242 is an abundant number, since it is smaller than the sum of its proper divisors (5007996643158).

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

4015420723242 is a wasteful number, since it uses less digits than its factorization.

4015420723242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835501707 (or 835501701 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 36.

Adding to 4015420723242 its reverse (2423270245104), we get a palindrome (6438690968346).

The spelling of 4015420723242 in words is "four trillion, fifteen billion, four hundred twenty million, seven hundred twenty-three thousand, two hundred forty-two".