142472388 has 24 divisors (see below), whose sum is σ = 333618208. Its totient is φ = 47321856.

The previous prime is 142472387. The next prime is 142472399. The reversal of 142472388 is 883274241.

It is not an unprimeable number, because it can be changed into a prime (142472383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17581 + ... + 24372.

Almost surely, 2^142472388 is an apocalyptic number.

It is an amenable number.

142472388 is an abundant number, since it is smaller than the sum of its proper divisors (191145820).

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

142472388 is a wasteful number, since it uses less digits than its factorization.

142472388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42243 (or 42241 counting only the distinct ones).

The product of its digits is 86016, while the sum is 39.

The square root of 142472388 is about 11936.1797908711. The cubic root of 142472388 is about 522.2882247312.

The spelling of 142472388 in words is "one hundred forty-two million, four hundred seventy-two thousand, three hundred eighty-eight".