1942635420 has 192 divisors, whose sum is σ = 6772147200. Its totient is φ = 458161920.

The previous prime is 1942635419. The next prime is 1942635427. The reversal of 1942635420 is 245362491.

It is a happy number.

1942635420 is a `hidden beast` number, since 1 + 94 + 26 + 3 + 542 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1942635427) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 215361 + ... + 224199.

It is an arithmetic number, because the mean of its divisors is an integer number (35271600).

Almost surely, 2^1942635420 is an apocalyptic number.

1942635420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1942635420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3386073600).

1942635420 is an abundant number, since it is smaller than the sum of its proper divisors (4829511780).

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

1942635420 is a wasteful number, since it uses less digits than its factorization.

1942635420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8905 (or 8897 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 1942635420 is about 44075.3380021073. The cubic root of 1942635420 is about 1247.7582048203.

The spelling of 1942635420 in words is "one billion, nine hundred forty-two million, six hundred thirty-five thousand, four hundred twenty".