1387622252 has 12 divisors (see below), whose sum is σ = 2461604376. Its totient is φ = 684306720.

The previous prime is 1387622233. The next prime is 1387622273. The reversal of 1387622252 is 2522267831.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2375774 + ... + 2376357.

It is an arithmetic number, because the mean of its divisors is an integer number (205133698).

Almost surely, 2^1387622252 is an apocalyptic number.

It is an amenable number.

1387622252 is a deficient number, since it is larger than the sum of its proper divisors (1073982124).

1387622252 is a wasteful number, since it uses less digits than its factorization.

1387622252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4752208 (or 4752206 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The square root of 1387622252 is about 37250.8020316342. The cubic root of 1387622252 is about 1115.3823089246.

The spelling of 1387622252 in words is "one billion, three hundred eighty-seven million, six hundred twenty-two thousand, two hundred fifty-two".