4021354142 has 16 divisors (see below), whose sum is σ = 6837930960. Its totient is φ = 1758324672.

The previous prime is 4021354121. The next prime is 4021354153. The reversal of 4021354142 is 2414531204.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

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, 4069703 + ... + 4070690.

It is an arithmetic number, because the mean of its divisors is an integer number (427370685).

Almost surely, 2^4021354142 is an apocalyptic number.

4021354142 is a deficient number, since it is larger than the sum of its proper divisors (2816576818).

4021354142 is a wasteful number, since it uses less digits than its factorization.

4021354142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8140427.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 4021354142 is about 63414.1478063058. The cubic root of 4021354142 is about 1590.2208390170.

Adding to 4021354142 its reverse (2414531204), we get a palindrome (6435885346).

The spelling of 4021354142 in words is "four billion, twenty-one million, three hundred fifty-four thousand, one hundred forty-two".