145362438 has 80 divisors (see below), whose sum is σ = 366147936. Its totient is φ = 42768000.

The previous prime is 145362421. The next prime is 145362443. The reversal of 145362438 is 834263541.

It is a super-2 number, since 2×145362438² = 42260476762607688, which contains 22 as substring.

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 46938 + ... + 49938.

Almost surely, 2^145362438 is an apocalyptic number.

145362438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 145362438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183073968).

145362438 is an abundant number, since it is smaller than the sum of its proper divisors (220785498).

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

145362438 is a wasteful number, since it uses less digits than its factorization.

145362438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3051 (or 3042 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 145362438 is about 12056.6346050629. The cubic root of 145362438 is about 525.7961471578.

The spelling of 145362438 in words is "one hundred forty-five million, three hundred sixty-two thousand, four hundred thirty-eight".