145038492 has 96 divisors (see below), whose sum is σ = 401163840. Its totient is φ = 45158400.

The previous prime is 145038473. The next prime is 145038497. The reversal of 145038492 is 294830541.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145038497) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 361492 + ... + 361892.

It is an arithmetic number, because the mean of its divisors is an integer number (4178790).

Almost surely, 2^145038492 is an apocalyptic number.

145038492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145038492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200581920).

145038492 is an abundant number, since it is smaller than the sum of its proper divisors (256125348).

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

145038492 is a wasteful number, since it uses less digits than its factorization.

145038492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628 (or 620 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 145038492 is about 12043.1927660401. The cubic root of 145038492 is about 525.4052707465.

It can be divided in two parts, 145038 and 492, that added together give a triangular number (145530 = T₅₃₉).

The spelling of 145038492 in words is "one hundred forty-five million, thirty-eight thousand, four hundred ninety-two".