387248445 has 56 divisors (see below), whose sum is σ = 702912672. Its totient is φ = 204703200.

The previous prime is 387248437. The next prime is 387248453. The reversal of 387248445 is 544842783.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (387248437) and next prime (387248453).

It is not a de Polignac number, because 387248445 - 2³ = 387248437 is a prime.

It is a super-2 number, since 2×387248445² = 299922716309836050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 387248445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 477090 + ... + 477900.

It is an arithmetic number, because the mean of its divisors is an integer number (12552012).

Almost surely, 2^387248445 is an apocalyptic number.

It is an amenable number.

387248445 is a deficient number, since it is larger than the sum of its proper divisors (315664227).

387248445 is an equidigital number, since it uses as much as digits as its factorization.

387248445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965 (or 950 counting only the distinct ones).

The product of its digits is 860160, while the sum is 45.

The square root of 387248445 is about 19678.6291443281. The cubic root of 387248445 is about 728.8920736431.

It can be divided in two parts, 387 and 248445, that added together give a 5-th power (248832 = 12⁵).

The spelling of 387248445 in words is "three hundred eighty-seven million, two hundred forty-eight thousand, four hundred forty-five".