142003400 has 96 divisors (see below), whose sum is σ = 411670080. Its totient is φ = 44256000.

The previous prime is 142003387. The next prime is 142003409. The reversal of 142003400 is 4300241.

It is a super-2 number, since 2×142003400² = 40329931223120000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142003409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10790 + ... + 20010.

It is an arithmetic number, because the mean of its divisors is an integer number (4288230).

Almost surely, 2^142003400 is an apocalyptic number.

142003400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142003400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205835040).

142003400 is an abundant number, since it is smaller than the sum of its proper divisors (269666680).

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

142003400 is a wasteful number, since it uses less digits than its factorization.

142003400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9255 (or 9246 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 142003400 is about 11916.5179477899. The cubic root of 142003400 is about 521.7145084798.

Adding to 142003400 its reverse (4300241), we get a palindrome (146303641).

The spelling of 142003400 in words is "one hundred forty-two million, three thousand, four hundred".