145780400 has 30 divisors (see below), whose sum is σ = 350238372. Its totient is φ = 58312000.

The previous prime is 145780367. The next prime is 145780429. The reversal of 145780400 is 4087541.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 181826 + ... + 182625.

Almost surely, 2^145780400 is an apocalyptic number.

145780400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145780400 is an abundant number, since it is smaller than the sum of its proper divisors (204457972).

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

145780400 is a wasteful number, since it uses less digits than its factorization.

145780400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364469 (or 364458 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 145780400 is about 12073.9554413622. The cubic root of 145780400 is about 526.2996071516.

The spelling of 145780400 in words is "one hundred forty-five million, seven hundred eighty thousand, four hundred".