3919797630 has 192 divisors, whose sum is σ = 12299688000. Its totient is φ = 885620736.

The previous prime is 3919797619. The next prime is 3919797631. The reversal of 3919797630 is 367979193.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3919797631) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1175806 + ... + 1179134.

It is an arithmetic number, because the mean of its divisors is an integer number (64060875).

Almost surely, 2^3919797630 is an apocalyptic number.

3919797630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3919797630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6149844000).

3919797630 is an abundant number, since it is smaller than the sum of its proper divisors (8379890370).

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

3919797630 is a wasteful number, since it uses less digits than its factorization.

3919797630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3448 (or 3435 counting only the distinct ones).

The product of its (nonzero) digits is 1928934, while the sum is 54.

The square root of 3919797630 is about 62608.2872310048. The cubic root of 3919797630 is about 1576.7198989656.

The spelling of 3919797630 in words is "three billion, nine hundred nineteen million, seven hundred ninety-seven thousand, six hundred thirty".