80142372 has 72 divisors (see below), whose sum is σ = 215316192. Its totient is φ = 26049600.

The previous prime is 80142371. The next prime is 80142383. The reversal of 80142372 is 27324108.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (80142371) 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, 38847 + ... + 40857.

Almost surely, 2^80142372 is an apocalyptic number.

80142372 is a gapful number since it is divisible by the number (82) 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 80142372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107658096).

80142372 is an abundant number, since it is smaller than the sum of its proper divisors (135173820).

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

80142372 is a wasteful number, since it uses less digits than its factorization.

80142372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2071 (or 2057 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 80142372 is about 8952.2272089129. The cubic root of 80142372 is about 431.1423958375.

The spelling of 80142372 in words is "eighty million, one hundred forty-two thousand, three hundred seventy-two".