145890430 has 32 divisors (see below), whose sum is σ = 317774016. Its totient is φ = 47076864.

The previous prime is 145890389. The next prime is 145890431. The reversal of 145890430 is 34098541.

145890430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145890431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60109 + ... + 62488.

It is an arithmetic number, because the mean of its divisors is an integer number (9930438).

Almost surely, 2^145890430 is an apocalyptic number.

145890430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145890430 is an abundant number, since it is smaller than the sum of its proper divisors (171883586).

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

145890430 is a wasteful number, since it uses less digits than its factorization.

145890430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122628.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 145890430 is about 12078.5110837388. The cubic root of 145890430 is about 526.4319847613.

The spelling of 145890430 in words is "one hundred forty-five million, eight hundred ninety thousand, four hundred thirty".