146398740 has 72 divisors (see below), whose sum is σ = 423732960. Its totient is φ = 37765440.

The previous prime is 146398729. The next prime is 146398753. The reversal of 146398740 is 47893641.

146398740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 146398692 and 146398701.

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, 56391 + ... + 58929.

It is an arithmetic number, because the mean of its divisors is an integer number (5885180).

Almost surely, 2^146398740 is an apocalyptic number.

146398740 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 146398740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211866480).

146398740 is an abundant number, since it is smaller than the sum of its proper divisors (277334220).

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

146398740 is a wasteful number, since it uses less digits than its factorization.

146398740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2613 (or 2580 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 146398740 is about 12099.5347017974. The cubic root of 146398740 is about 527.0426724385.

The spelling of 146398740 in words is "one hundred forty-six million, three hundred ninety-eight thousand, seven hundred forty".