146263240 has 64 divisors (see below), whose sum is σ = 360514800. Its totient is φ = 53157888.

The previous prime is 146263231. The next prime is 146263259. The reversal of 146263240 is 42362641.

146263240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 109369764 + 36893476 = 10458^2 + 6074^2 .

It is a junction number, because it is equal to n+sod(n) for n = 146263199 and 146263208.

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, 16012 + ... + 23428.

Almost surely, 2^146263240 is an apocalyptic number.

146263240 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 146263240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180257400).

146263240 is an abundant number, since it is smaller than the sum of its proper divisors (214251560).

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

146263240 is a wasteful number, since it uses less digits than its factorization.

146263240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7474 (or 7470 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 146263240 is about 12093.9340166879. The cubic root of 146263240 is about 526.8800200230.

The spelling of 146263240 in words is "one hundred forty-six million, two hundred sixty-three thousand, two hundred forty".