145888390 has 16 divisors (see below), whose sum is σ = 278046432. Its totient is φ = 54922624.

The previous prime is 145888381. The next prime is 145888397. The reversal of 145888390 is 93888541.

It is a self number, because there is not a number n which added to its sum of digits gives 145888390.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145888397) 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, 428914 + ... + 429253.

It is an arithmetic number, because the mean of its divisors is an integer number (17377902).

Almost surely, 2^145888390 is an apocalyptic number.

145888390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145888390 is a deficient number, since it is larger than the sum of its proper divisors (132158042).

145888390 is a wasteful number, since it uses less digits than its factorization.

145888390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858191.

The product of its (nonzero) digits is 276480, while the sum is 46.

The square root of 145888390 is about 12078.4266359489. The cubic root of 145888390 is about 526.4295310334.

The spelling of 145888390 in words is "one hundred forty-five million, eight hundred eighty-eight thousand, three hundred ninety".