146238840 has 96 divisors (see below), whose sum is σ = 518497200. Its totient is φ = 35450880.

The previous prime is 146238821. The next prime is 146238871. The reversal of 146238840 is 48832641.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 146238795 and 146238804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14505 + ... + 22424.

Almost surely, 2^146238840 is an apocalyptic number.

146238840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146238840 is an abundant number, since it is smaller than the sum of its proper divisors (372258360).

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

146238840 is a wasteful number, since it uses less digits than its factorization.

146238840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36957 (or 36950 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 146238840 is about 12092.9252044325. The cubic root of 146238840 is about 526.8507199122.

The spelling of 146238840 in words is "one hundred forty-six million, two hundred thirty-eight thousand, eight hundred forty".