1939395552 has 48 divisors (see below), whose sum is σ = 5228515152. Its totient is φ = 628992000.

The previous prime is 1939395533. The next prime is 1939395553. The reversal of 1939395552 is 2555939391.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×1939395552² = 7522510214234769408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1939395495 and 1939395504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1939395553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269449 + ... + 276552.

It is an arithmetic number, because the mean of its divisors is an integer number (108927399).

Almost surely, 2^1939395552 is an apocalyptic number.

1939395552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1939395552 is an abundant number, since it is smaller than the sum of its proper divisors (3289119600).

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

1939395552 is a wasteful number, since it uses less digits than its factorization.

1939395552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546051 (or 546043 counting only the distinct ones).

The product of its digits is 1640250, while the sum is 51.

The square root of 1939395552 is about 44038.5689140780. The cubic root of 1939395552 is about 1247.0641611719.

The spelling of 1939395552 in words is "one billion, nine hundred thirty-nine million, three hundred ninety-five thousand, five hundred fifty-two".