142232464 has 80 divisors (see below), whose sum is σ = 314265600. Its totient is φ = 61776000.

The previous prime is 142232449. The next prime is 142232471. The reversal of 142232464 is 464232241.

It is a super-2 number, since 2×142232464² = 40460147631022592, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 714637 + ... + 714835.

It is an arithmetic number, because the mean of its divisors is an integer number (3928320).

Almost surely, 2^142232464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142232464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157132800).

142232464 is an abundant number, since it is smaller than the sum of its proper divisors (172033136).

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

142232464 is a wasteful number, since it uses less digits than its factorization.

142232464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380 (or 374 counting only the distinct ones).

The product of its digits is 9216, while the sum is 28.

The square root of 142232464 is about 11926.1252718559. The cubic root of 142232464 is about 521.9948816065.

The spelling of 142232464 in words is "one hundred forty-two million, two hundred thirty-two thousand, four hundred sixty-four".