1939117408 has 12 divisors (see below), whose sum is σ = 3817637460. Its totient is φ = 969558688.

The previous prime is 1939117391. The next prime is 1939117441. The reversal of 1939117408 is 8047119391.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30298678 + ... + 30298741.

It is an arithmetic number, because the mean of its divisors is an integer number (318136455).

Almost surely, 2^1939117408 is an apocalyptic number.

It is an amenable number.

1939117408 is a deficient number, since it is larger than the sum of its proper divisors (1878520052).

1939117408 is an equidigital number, since it uses as much as digits as its factorization.

1939117408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60597429 (or 60597421 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 1939117408 is about 44035.4108417305. The cubic root of 1939117408 is about 1247.0045412219.

The spelling of 1939117408 in words is "one billion, nine hundred thirty-nine million, one hundred seventeen thousand, four hundred eight".