142390624684 has 72 divisors (see below), whose sum is σ = 316519071120. Its totient is φ = 55424073600.

The previous prime is 142390624669. The next prime is 142390624687. The reversal of 142390624684 is 486426093241.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (142390624687) 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, 2273874 + ... + 2335654.

It is an arithmetic number, because the mean of its divisors is an integer number (4396098210).

Almost surely, 2^142390624684 is an apocalyptic number.

142390624684 is a gapful number since it is divisible by the number (14) 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 142390624684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158259535560).

142390624684 is an abundant number, since it is smaller than the sum of its proper divisors (174128446436).

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

142390624684 is a wasteful number, since it uses less digits than its factorization.

142390624684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62879 (or 62870 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 49.

The spelling of 142390624684 in words is "one hundred forty-two billion, three hundred ninety million, six hundred twenty-four thousand, six hundred eighty-four".