145369392 has 80 divisors (see below), whose sum is σ = 436519680. Its totient is φ = 40824576.

The previous prime is 145369391. The next prime is 145369403. The reversal of 145369392 is 293963541.

It is a happy number.

It is a super-2 number, since 2×145369392² = 42264520260899328, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (145369391) 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, 16158 + ... + 23490.

It is an arithmetic number, because the mean of its divisors is an integer number (5456496).

Almost surely, 2^145369392 is an apocalyptic number.

145369392 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 145369392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218259840).

145369392 is an abundant number, since it is smaller than the sum of its proper divisors (291150288).

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

145369392 is a wasteful number, since it uses less digits than its factorization.

145369392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7410 (or 7404 counting only the distinct ones).

The product of its digits is 174960, while the sum is 42.

The square root of 145369392 is about 12056.9229905478. The cubic root of 145369392 is about 525.8045315524.

The spelling of 145369392 in words is "one hundred forty-five million, three hundred sixty-nine thousand, three hundred ninety-two".