1204213542 has 64 divisors (see below), whose sum is σ = 2828044800. Its totient is φ = 334667520.

The previous prime is 1204213531. The next prime is 1204213567. The reversal of 1204213542 is 2453124021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 720684 + ... + 722352.

It is an arithmetic number, because the mean of its divisors is an integer number (44188200).

Almost surely, 2^1204213542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1204213542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1414022400).

1204213542 is an abundant number, since it is smaller than the sum of its proper divisors (1623831258).

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

1204213542 is a wasteful number, since it uses less digits than its factorization.

1204213542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1204213542 is about 34701.7800984330. The cubic root of 1204213542 is about 1063.9008819751.

Adding to 1204213542 its reverse (2453124021), we get a palindrome (3657337563).

The spelling of 1204213542 in words is "one billion, two hundred four million, two hundred thirteen thousand, five hundred forty-two".