4021234542 has 48 divisors (see below), whose sum is σ = 9522960720. Its totient is φ = 1218830976.

The previous prime is 4021234541. The next prime is 4021234543. The reversal of 4021234542 is 2454321204.

It is an interprime number because it is at equal distance from previous prime (4021234541) and next prime (4021234543).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021234541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112567 + ... + 143922.

It is an arithmetic number, because the mean of its divisors is an integer number (198395015).

Almost surely, 2^4021234542 is an apocalyptic number.

4021234542 is an abundant number, since it is smaller than the sum of its proper divisors (5501726178).

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

4021234542 is a wasteful number, since it uses less digits than its factorization.

4021234542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256577 (or 256574 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 4021234542 is about 63413.2047920620. The cubic root of 4021234542 is about 1590.2050738219.

Adding to 4021234542 its reverse (2454321204), we get a palindrome (6475555746).

The spelling of 4021234542 in words is "four billion, twenty-one million, two hundred thirty-four thousand, five hundred forty-two".