1380421750 has 32 divisors (see below), whose sum is σ = 2673272160. Its totient is φ = 533125600.

The previous prime is 1380421739. The next prime is 1380421769. The reversal of 1380421750 is 571240831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87952 + ... + 102451.

It is an arithmetic number, because the mean of its divisors is an integer number (83539755).

Almost surely, 2^1380421750 is an apocalyptic number.

1380421750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1380421750 is a deficient number, since it is larger than the sum of its proper divisors (1292850410).

1380421750 is a wasteful number, since it uses less digits than its factorization.

1380421750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190449 (or 190439 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 1380421750 is about 37154.0273725474. The cubic root of 1380421750 is about 1113.4496877410.

The spelling of 1380421750 in words is "one billion, three hundred eighty million, four hundred twenty-one thousand, seven hundred fifty".