145292448 has 144 divisors (see below), whose sum is σ = 451259424. Its totient is φ = 40803840.

The previous prime is 145292437. The next prime is 145292461. The reversal of 145292448 is 844292541.

It is a super-2 number, since 2×145292448² = 42219790891665408, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 314938 + ... + 315398.

It is an arithmetic number, because the mean of its divisors is an integer number (3133746).

Almost surely, 2^145292448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145292448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225629712).

145292448 is an abundant number, since it is smaller than the sum of its proper divisors (305966976).

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

145292448 is a wasteful number, since it uses less digits than its factorization.

145292448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555 (or 540 counting only the distinct ones).

The product of its digits is 92160, while the sum is 39.

The square root of 145292448 is about 12053.7317043312. The cubic root of 145292448 is about 525.7117457569.

The spelling of 145292448 in words is "one hundred forty-five million, two hundred ninety-two thousand, four hundred forty-eight".