146424640 has 56 divisors (see below), whose sum is σ = 367040160. Its totient is φ = 55484928.

The previous prime is 146424623. The next prime is 146424643. The reversal of 146424640 is 46424641.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146424643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5962 + ... + 18121.

Almost surely, 2^146424640 is an apocalyptic number.

146424640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146424640 is an abundant number, since it is smaller than the sum of its proper divisors (220615520).

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

146424640 is a wasteful number, since it uses less digits than its factorization.

146424640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24119 (or 24109 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

The square root of 146424640 is about 12100.6049435555. The cubic root of 146424640 is about 527.0737510309.

Subtracting from 146424640 its reverse (46424641), we obtain a palindrome (99999999).

The spelling of 146424640 in words is "one hundred forty-six million, four hundred twenty-four thousand, six hundred forty".