1342642420 has 96 divisors (see below), whose sum is σ = 3323400192. Its totient is φ = 446095488.

The previous prime is 1342642387. The next prime is 1342642451. The reversal of 1342642420 is 242462431.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 703107 + ... + 705013.

It is an arithmetic number, because the mean of its divisors is an integer number (34618752).

Almost surely, 2^1342642420 is an apocalyptic number.

1342642420 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 1342642420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1661700096).

1342642420 is an abundant number, since it is smaller than the sum of its proper divisors (1980757772).

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

1342642420 is a wasteful number, since it uses less digits than its factorization.

1342642420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2077 (or 2075 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 1342642420 is about 36642.0853664199. The cubic root of 1342642420 is about 1103.1979719321.

The spelling of 1342642420 in words is "one billion, three hundred forty-two million, six hundred forty-two thousand, four hundred twenty".