146456840 has 16 divisors (see below), whose sum is σ = 329527980. Its totient is φ = 58582720.

The previous prime is 146456809. The next prime is 146456851. The reversal of 146456840 is 48654641.

It can be written as a sum of positive squares in 2 ways, for example, as 140801956 + 5654884 = 11866^2 + 2378^2 .

It is a junction number, because it is equal to n+sod(n) for n = 146456794 and 146456803.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1830671 + ... + 1830750.

Almost surely, 2^146456840 is an apocalyptic number.

146456840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146456840 is an abundant number, since it is smaller than the sum of its proper divisors (183071140).

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

146456840 is a wasteful number, since it uses less digits than its factorization.

146456840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3661432 (or 3661428 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 146456840 is about 12101.9353824089. The cubic root of 146456840 is about 527.1123841709.

The spelling of 146456840 in words is "one hundred forty-six million, four hundred fifty-six thousand, eight hundred forty".