1382445240 has 64 divisors (see below), whose sum is σ = 4524370560. Its totient is φ = 335137920.

The previous prime is 1382445221. The next prime is 1382445241. The reversal of 1382445240 is 425442831.

It is a super-2 number, since 2×1382445240² = 3822309683197315200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1382445241) 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, 522334 + ... + 524973.

It is an arithmetic number, because the mean of its divisors is an integer number (70693290).

Almost surely, 2^1382445240 is an apocalyptic number.

1382445240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1382445240 is an abundant number, since it is smaller than the sum of its proper divisors (3141925320).

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

1382445240 is a wasteful number, since it uses less digits than its factorization.

1382445240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047332 (or 1047328 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 1382445240 is about 37181.2484997478. The cubic root of 1382445240 is about 1113.9934718719.

The spelling of 1382445240 in words is "one billion, three hundred eighty-two million, four hundred forty-five thousand, two hundred forty".