145789400 has 24 divisors (see below), whose sum is σ = 338960820. Its totient is φ = 58315680.

The previous prime is 145789381. The next prime is 145789403. The reversal of 145789400 is 4987541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145789403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 364274 + ... + 364673.

Almost surely, 2^145789400 is an apocalyptic number.

145789400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145789400 is an abundant number, since it is smaller than the sum of its proper divisors (193171420).

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

145789400 is a wasteful number, since it uses less digits than its factorization.

145789400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728963 (or 728954 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 145789400 is about 12074.3281386585. The cubic root of 145789400 is about 526.3104375947.

The spelling of 145789400 in words is "one hundred forty-five million, seven hundred eighty-nine thousand, four hundred".